diff --git a/ENTSO-E-PRICES-MIGRATION.md b/ENTSO-E-PRICES-MIGRATION.md
index 27365d8..9a27bd9 100644
--- a/ENTSO-E-PRICES-MIGRATION.md
+++ b/ENTSO-E-PRICES-MIGRATION.md
@@ -85,96 +85,114 @@ The goal of EPrices was to:
 | Manual force update | Button | Button (unchanged) |
 | Midnight bridge | External HA automation at 00:00 | On-device `on_time: 00:00:00` |
 
+---
+
 ### Sensor naming
 
 All sensors were renamed with a systematic **Today / Tomorrow** prefix.
 The words "electricity" and "energy" were removed from all sensor names.
 "Next Day" was replaced with "Tomorrow" throughout.
 
+> **Note on entity ID slugs:** HA derives entity IDs by lower-casing the
+> sensor name and replacing spaces and special characters with underscores.
+> The `⁄` character in JSON sensor names may have been rendered differently
+> by older ESPHome versions — verify those specific IDs against your actual
+> HA instance if needed.
+
+---
+
 #### Numeric sensors
 
-| entso-e-prices v4.3.1 name | EPrices v1.0 name |
-|---|---|
-| `Current Electricity Price` | `Today Current Price` |
-| `Next Electricity Price` | `Today Next Price` |
-| `Average Electricity Price Today` | `Today Average Price` |
-| `Highest Electricity Price Today` | `Today Highest Price` |
-| `Lowest Electricity Price Today` | `Today Lowest Price` |
-| `Current Hourly Electricity Price` | `Today Current Hourly Price` |
-| `Next Hourly Electricity Price` | `Today Next Hourly Price` |
-| `Highest Hourly Electricity Price Today` | `Today Highest Hourly Price` |
-| `Lowest Hourly Electricity Price Today` | `Today Lowest Hourly Price` |
-| `Current Max Hourly Price Percentage` | `Today Current Max Hourly Price Percentage` |
-| `Daily Price Update Attempts` | `Today API Fetch Attempts` *(moved to text_sensor)* |
-| `Today Entry Count` | `Today Entry Count` *(moved to text_sensor)* |
-| `Next Day Current Electricity Price` | `Tomorrow Current Price` |
-| `Next Day Next Electricity Price` | `Tomorrow Next Price` |
-| `Average Electricity Price Tomorrow` | `Tomorrow Average Price` |
-| `Highest Electricity Price Tomorrow` | `Tomorrow Highest Price` |
-| `Lowest Electricity Price Tomorrow` | `Tomorrow Lowest Price` |
-| `Current Hourly Electricity Price Tomorrow` | `Tomorrow Current Hourly Price` |
-| `Next Hourly Electricity Price Tomorrow` | `Tomorrow Next Hourly Price` |
-| `Highest Hourly Electricity Price Tomorrow` | `Tomorrow Highest Hourly Price` |
-| `Lowest Hourly Electricity Price Tomorrow` | `Tomorrow Lowest Hourly Price` |
-| `Next Day Current Max Hourly Price Percentage` | `Tomorrow Current Max Hourly Price Percentage` |
-| `Next Day Price Update Attempts` | `Tomorrow API Fetch Attempts` *(moved to text_sensor)* |
-| `Tomorrow Entry Count` | `Tomorrow Entry Count` *(moved to text_sensor)* |
+| entso-e-prices v4.3.1 name | v4.3.1 entity ID | EPrices v1.2 name | EPrices v1.2 entity ID |
+|---|---|---|---|
+| `Current Electricity Price` | `sensor.entso_e_prices_current_electricity_price` | `Today Current Price` | `sensor.eprices_today_current_price` |
+| `Next Electricity Price` | `sensor.entso_e_prices_next_electricity_price` | `Today Next Price` | `sensor.eprices_today_next_price` |
+| `Average Electricity Price Today` | `sensor.entso_e_prices_average_electricity_price_today` | `Today Average Price` | `sensor.eprices_today_average_price` |
+| `Highest Electricity Price Today` | `sensor.entso_e_prices_highest_electricity_price_today` | `Today Highest Price` | `sensor.eprices_today_highest_price` |
+| `Lowest Electricity Price Today` | `sensor.entso_e_prices_lowest_electricity_price_today` | `Today Lowest Price` | `sensor.eprices_today_lowest_price` |
+| `Current Hourly Electricity Price` | `sensor.entso_e_prices_current_hourly_electricity_price` | `Today Current Hourly Price` | `sensor.eprices_today_current_hourly_price` |
+| `Next Hourly Electricity Price` | `sensor.entso_e_prices_next_hourly_electricity_price` | `Today Next Hourly Price` | `sensor.eprices_today_next_hourly_price` |
+| `Highest Hourly Electricity Price Today` | `sensor.entso_e_prices_highest_hourly_electricity_price_today` | `Today Highest Hourly Price` | `sensor.eprices_today_highest_hourly_price` |
+| `Lowest Hourly Electricity Price Today` | `sensor.entso_e_prices_lowest_hourly_electricity_price_today` | `Today Lowest Hourly Price` | `sensor.eprices_today_lowest_hourly_price` |
+| `Current Max Hourly Price Percentage` | `sensor.entso_e_prices_current_max_hourly_price_percentage` | `Today Current Max Hourly Price Percentage` | `sensor.eprices_today_current_max_hourly_price_percentage` |
+| `Daily Price Update Attempts` | `sensor.entso_e_prices_daily_price_update_attempts` | `Today API Fetch Attempts` *(moved to text_sensor)* | `sensor.eprices_today_api_fetch_attempts` |
+| `Today Entry Count` | `sensor.entso_e_prices_today_entry_count` | `Today Entry Count` *(moved to text_sensor)* | `sensor.eprices_today_entry_count` |
+| `Next Day Current Electricity Price` | `sensor.entso_e_prices_next_day_current_electricity_price` | `Tomorrow Current Price` | `sensor.eprices_tomorrow_current_price` |
+| `Next Day Next Electricity Price` | `sensor.entso_e_prices_next_day_next_electricity_price` | `Tomorrow Next Price` | `sensor.eprices_tomorrow_next_price` |
+| `Average Electricity Price Tomorrow` | `sensor.entso_e_prices_average_electricity_price_tomorrow` | `Tomorrow Average Price` | `sensor.eprices_tomorrow_average_price` |
+| `Highest Electricity Price Tomorrow` | `sensor.entso_e_prices_highest_electricity_price_tomorrow` | `Tomorrow Highest Price` | `sensor.eprices_tomorrow_highest_price` |
+| `Lowest Electricity Price Tomorrow` | `sensor.entso_e_prices_lowest_electricity_price_tomorrow` | `Tomorrow Lowest Price` | `sensor.eprices_tomorrow_lowest_price` |
+| `Current Hourly Electricity Price Tomorrow` | `sensor.entso_e_prices_current_hourly_electricity_price_tomorrow` | `Tomorrow Current Hourly Price` | `sensor.eprices_tomorrow_current_hourly_price` |
+| `Next Hourly Electricity Price Tomorrow` | `sensor.entso_e_prices_next_hourly_electricity_price_tomorrow` | `Tomorrow Next Hourly Price` | `sensor.eprices_tomorrow_next_hourly_price` |
+| `Highest Hourly Electricity Price Tomorrow` | `sensor.entso_e_prices_highest_hourly_electricity_price_tomorrow` | `Tomorrow Highest Hourly Price` | `sensor.eprices_tomorrow_highest_hourly_price` |
+| `Lowest Hourly Electricity Price Tomorrow` | `sensor.entso_e_prices_lowest_hourly_electricity_price_tomorrow` | `Tomorrow Lowest Hourly Price` | `sensor.eprices_tomorrow_lowest_hourly_price` |
+| `Next Day Current Max Hourly Price Percentage` | `sensor.entso_e_prices_next_day_current_max_hourly_price_percentage` | `Tomorrow Current Max Hourly Price Percentage` | `sensor.eprices_tomorrow_current_max_hourly_price_percentage` |
+| `Next Day Price Update Attempts` | `sensor.entso_e_prices_next_day_price_update_attempts` | `Tomorrow API Fetch Attempts` *(moved to text_sensor)* | `sensor.eprices_tomorrow_api_fetch_attempts` |
+| `Tomorrow Entry Count` | `sensor.entso_e_prices_tomorrow_entry_count` | `Tomorrow Entry Count` *(moved to text_sensor)* | `sensor.eprices_tomorrow_entry_count` |
+
+---
 
 #### Text sensors
 
-| entso-e-prices v4.3.1 name | EPrices v1.0 name |
-|---|---|
-| `ENTSO-E Hourly Prices EUR⁄kWh JSON` | `Today JSON Hourly Prices EUR⁄kWh` |
-| `ENTSO-E 15-Min Prices EUR⁄kWh JSON (P1 00:00-07:45)` | `Today JSON 15-Min Prices EUR⁄kWh (P1 00:00-07:45)` |
-| `ENTSO-E 15-Min Prices EUR⁄kWh JSON (P2 08:00-15:45)` | `Today JSON 15-Min Prices EUR⁄kWh (P2 08:00-15:45)` |
-| `ENTSO-E 15-Min Prices EUR⁄kWh JSON (P3 16:00-23:45)` | `Today JSON 15-Min Prices EUR⁄kWh (P3 16:00-23:45)` |
-| `Time Of Highest Energy Price Today` | `Today Highest Price Time` |
-| `Time Of Lowest Energy Price Today` | `Today Lowest Price Time` |
-| `Time Of Highest Hourly Energy Price Today` | `Today Highest Hourly Price Time` |
-| `Time Of Lowest Hourly Energy Price Today` | `Today Lowest Hourly Price Time` |
-| `Price Update Status` | `Today Price Update Status` |
-| `Last Price Update Time` | `Today Data Loaded Time` |
-| `Price Update Status Message` | `Today Price Update Status Message` |
-| `Current Price Status` | `Today Current Price Status` |
-| `ENTSO-E Next Day Hourly Prices EUR⁄kWh JSON` | `Tomorrow JSON Hourly Prices EUR⁄kWh` |
-| `ENTSO-E Next Day 15-Min Prices EUR⁄kWh JSON (P1 00:00-07:45)` | `Tomorrow JSON 15-Min Prices EUR⁄kWh (P1 00:00-07:45)` |
-| `ENTSO-E Next Day 15-Min Prices EUR⁄kWh JSON (P2 08:00-15:45)` | `Tomorrow JSON 15-Min Prices EUR⁄kWh (P2 08:00-15:45)` |
-| `ENTSO-E Next Day 15-Min Prices EUR⁄kWh JSON (P3 16:00-23:45)` | `Tomorrow JSON 15-Min Prices EUR⁄kWh (P3 16:00-23:45)` |
-| `Time Of Highest Energy Price Tomorrow` | `Tomorrow Highest Price Time` |
-| `Time Of Lowest Energy Price Tomorrow` | `Tomorrow Lowest Price Time` |
-| `Time Of Highest Hourly Energy Price Tomorrow` | `Tomorrow Highest Hourly Price Time` |
-| `Time Of Lowest Hourly Energy Price Tomorrow` | `Tomorrow Lowest Hourly Price Time` |
-| `Next Day Price Update Status` | `Tomorrow Price Update Status` |
-| `Next Day Last Price Update Time` | `Tomorrow Data Loaded Time` |
-| `Next Day Price Update Status Message` | `Tomorrow Price Update Status Message` |
-| `Next Day Current Price Status` | `Tomorrow Current Price Status` |
-| `ENTSO-E Last Reboot` | `Last Reboot` |
-| `Entso-E Today NVS Status` | `Today NVS Status` |
-| `Entso-E Tomorrow NVS Status` | `Tomorrow NVS Status` |
-| `ENTSO-E Last Update Source` | `Last Update Source` |
-| `Today Data Date` | `Today Data Date` *(unchanged)* |
-| `Tomorrow Data Date` | `Tomorrow Data Date` *(unchanged)* |
+| entso-e-prices v4.3.1 name | v4.3.1 entity ID | EPrices v1.2 name | EPrices v1.2 entity ID |
+|---|---|---|---|
+| `ENTSO-E Hourly Prices EUR⁄kWh JSON` | `sensor.entso_e_prices_entso_e_hourly_prices_eur_kwh_json` | `Today JSON Hourly Prices EUR⁄kWh` | `sensor.eprices_today_json_hourly_prices_eur_kwh` |
+| `ENTSO-E 15-Min Prices EUR⁄kWh JSON (P1 00:00-07:45)` | `sensor.entso_e_prices_entso_e_15_min_prices_eur_kwh_json_p1_00_00_07_45` | `Today JSON 15-Min Prices EUR⁄kWh (P1 00:00-07:45)` | `sensor.eprices_today_json_15_min_prices_eur_kwh_p1_00_00_07_45` |
+| `ENTSO-E 15-Min Prices EUR⁄kWh JSON (P2 08:00-15:45)` | `sensor.entso_e_prices_entso_e_15_min_prices_eur_kwh_json_p2_08_00_15_45` | `Today JSON 15-Min Prices EUR⁄kWh (P2 08:00-15:45)` | `sensor.eprices_today_json_15_min_prices_eur_kwh_p2_08_00_15_45` |
+| `ENTSO-E 15-Min Prices EUR⁄kWh JSON (P3 16:00-23:45)` | `sensor.entso_e_prices_entso_e_15_min_prices_eur_kwh_json_p3_16_00_23_45` | `Today JSON 15-Min Prices EUR⁄kWh (P3 16:00-23:45)` | `sensor.eprices_today_json_15_min_prices_eur_kwh_p3_16_00_23_45` |
+| `Time Of Highest Energy Price Today` | `sensor.entso_e_prices_time_of_highest_energy_price_today` | `Today Highest Price Time` | `sensor.eprices_today_highest_price_time` |
+| `Time Of Lowest Energy Price Today` | `sensor.entso_e_prices_time_of_lowest_energy_price_today` | `Today Lowest Price Time` | `sensor.eprices_today_lowest_price_time` |
+| `Time Of Highest Hourly Energy Price Today` | `sensor.entso_e_prices_time_of_highest_hourly_energy_price_today` | `Today Highest Hourly Price Time` | `sensor.eprices_today_highest_hourly_price_time` |
+| `Time Of Lowest Hourly Energy Price Today` | `sensor.entso_e_prices_time_of_lowest_hourly_energy_price_today` | `Today Lowest Hourly Price Time` | `sensor.eprices_today_lowest_hourly_price_time` |
+| `Price Update Status` | `sensor.entso_e_prices_price_update_status` | `Today Price Update Status` | `sensor.eprices_today_price_update_status` |
+| `Last Price Update Time` | `sensor.entso_e_prices_last_price_update_time` | `Today Data Loaded Time` | `sensor.eprices_today_data_loaded_time` |
+| `Price Update Status Message` | `sensor.entso_e_prices_price_update_status_message` | `Today Price Update Status Message` | `sensor.eprices_today_price_update_status_message` |
+| `Current Price Status` | `sensor.entso_e_prices_current_price_status` | `Today Current Price Status` | `sensor.eprices_today_current_price_status` |
+| `ENTSO-E Next Day Hourly Prices EUR⁄kWh JSON` | `sensor.entso_e_prices_entso_e_next_day_hourly_prices_eur_kwh_json` | `Tomorrow JSON Hourly Prices EUR⁄kWh` | `sensor.eprices_tomorrow_json_hourly_prices_eur_kwh` |
+| `ENTSO-E Next Day 15-Min Prices EUR⁄kWh JSON (P1 00:00-07:45)` | `sensor.entso_e_prices_entso_e_next_day_15_min_prices_eur_kwh_json_p1_00_00_07_45` | `Tomorrow JSON 15-Min Prices EUR⁄kWh (P1 00:00-07:45)` | `sensor.eprices_tomorrow_json_15_min_prices_eur_kwh_p1_00_00_07_45` |
+| `ENTSO-E Next Day 15-Min Prices EUR⁄kWh JSON (P2 08:00-15:45)` | `sensor.entso_e_prices_entso_e_next_day_15_min_prices_eur_kwh_json_p2_08_00_15_45` | `Tomorrow JSON 15-Min Prices EUR⁄kWh (P2 08:00-15:45)` | `sensor.eprices_tomorrow_json_15_min_prices_eur_kwh_p2_08_00_15_45` |
+| `ENTSO-E Next Day 15-Min Prices EUR⁄kWh JSON (P3 16:00-23:45)` | `sensor.entso_e_prices_entso_e_next_day_15_min_prices_eur_kwh_json_p3_16_00_23_45` | `Tomorrow JSON 15-Min Prices EUR⁄kWh (P3 16:00-23:45)` | `sensor.eprices_tomorrow_json_15_min_prices_eur_kwh_p3_16_00_23_45` |
+| `Time Of Highest Energy Price Tomorrow` | `sensor.entso_e_prices_time_of_highest_energy_price_tomorrow` | `Tomorrow Highest Price Time` | `sensor.eprices_tomorrow_highest_price_time` |
+| `Time Of Lowest Energy Price Tomorrow` | `sensor.entso_e_prices_time_of_lowest_energy_price_tomorrow` | `Tomorrow Lowest Price Time` | `sensor.eprices_tomorrow_lowest_price_time` |
+| `Time Of Highest Hourly Energy Price Tomorrow` | `sensor.entso_e_prices_time_of_highest_hourly_energy_price_tomorrow` | `Tomorrow Highest Hourly Price Time` | `sensor.eprices_tomorrow_highest_hourly_price_time` |
+| `Time Of Lowest Hourly Energy Price Tomorrow` | `sensor.entso_e_prices_time_of_lowest_hourly_energy_price_tomorrow` | `Tomorrow Lowest Hourly Price Time` | `sensor.eprices_tomorrow_lowest_hourly_price_time` |
+| `Next Day Price Update Status` | `sensor.entso_e_prices_next_day_price_update_status` | `Tomorrow Price Update Status` | `sensor.eprices_tomorrow_price_update_status` |
+| `Next Day Last Price Update Time` | `sensor.entso_e_prices_next_day_last_price_update_time` | `Tomorrow Data Loaded Time` | `sensor.eprices_tomorrow_data_loaded_time` |
+| `Next Day Price Update Status Message` | `sensor.entso_e_prices_next_day_price_update_status_message` | `Tomorrow Price Update Status Message` | `sensor.eprices_tomorrow_price_update_status_message` |
+| `Next Day Current Price Status` | `sensor.entso_e_prices_next_day_current_price_status` | `Tomorrow Current Price Status` | `sensor.eprices_tomorrow_current_price_status` |
+| `ENTSO-E Last Reboot` | `sensor.entso_e_prices_entso_e_last_reboot` | `Last Reboot` | `sensor.eprices_last_reboot` |
+| `Entso-E Today NVS Status` | `sensor.entso_e_prices_entso_e_today_nvs_status` | `Today NVS Status` | `sensor.eprices_today_nvs_status` |
+| `Entso-E Tomorrow NVS Status` | `sensor.entso_e_prices_entso_e_tomorrow_nvs_status` | `Tomorrow NVS Status` | `sensor.eprices_tomorrow_nvs_status` |
+| `ENTSO-E Last Update Source` | `sensor.entso_e_prices_entso_e_last_update_source` | `Last Update Source` | `sensor.eprices_last_update_source` |
+| `Today Data Date` | `sensor.entso_e_prices_today_data_date` | `Today Data Date` *(unchanged)* | `sensor.eprices_today_data_date` |
+| `Tomorrow Data Date` | `sensor.entso_e_prices_tomorrow_data_date` | `Tomorrow Data Date` *(unchanged)* | `sensor.eprices_tomorrow_data_date` |
+
+---
 
 #### Buttons
 
-| entso-e-prices v4.3.1 name | EPrices v1.0 name |
-|---|---|
-| `Entso-E Force Update` | `Force Today's Update` |
-| `Entso-E Force Next Day Update` | `Force Tomorrow's Update` |
-| `Entso-E Reboot Device` | `Reboot Device` |
+| entso-e-prices v4.3.1 name | v4.3.1 entity ID | EPrices v1.2 name | EPrices v1.2 entity ID |
+|---|---|---|---|
+| `Entso-E Force Update` | `button.entso_e_prices_entso_e_force_update` | `Force Today's Update` | `button.eprices_force_today_s_update` |
+| `Entso-E Force Next Day Update` | `button.entso_e_prices_entso_e_force_next_day_update` | `Force Tomorrow's Update` | `button.eprices_force_tomorrow_s_update` |
+| `Entso-E Reboot Device` | `button.entso_e_prices_entso_e_reboot_device` | `Reboot Device` | `button.eprices_reboot_device` |
+
+---
 
 ### New sensors in EPrices v1.0 (no equivalent in v4.3.1)
 
-| Sensor | Purpose |
-|---|---|
-| `Today Last API Fetch Time` | Timestamp of last successful HTTP fetch for today |
-| `Tomorrow Last API Fetch Time` | Timestamp of last successful HTTP fetch for tomorrow |
-| `WiFi Signal` | RSSI in dBm |
-| `Uptime` | Human-readable uptime string |
+| EPrices v1.2 name | EPrices v1.2 entity ID | Purpose |
+|---|---|---|
+| `Today Last API Fetch Time` | `sensor.eprices_today_last_api_fetch_time` | Timestamp of last successful HTTP fetch for today |
+| `Tomorrow Last API Fetch Time` | `sensor.eprices_tomorrow_last_api_fetch_time` | Timestamp of last successful HTTP fetch for tomorrow |
+| `WiFi Signal` | `sensor.eprices_wifi_signal` | RSSI in dBm |
+| `Uptime` | `sensor.eprices_uptime` | Human-readable uptime string |
+
+---
 
 ### Sensor output changes
 
-| Sensor | v4.3.1 output | EPrices v1.0 output |
+| Sensor | v4.3.1 output | EPrices v1.2 output |
 |---|---|---|
 | `Last Reboot` | `Last reboot: 2026-04-04 20:10:10` | `2026-04-04 20:10:10` |
 | `Today NVS Status` | `Today NVS: Stored 96 pts for 2026-04-04` | `Stored 96 pts for 2026-04-04` |
@@ -186,23 +204,30 @@ The words "electricity" and "energy" were removed from all sensor names.
 | `Today Current Price Status` | `Valid` / `Missing` | `Valid` / `Missing` / `Stale` |
 | `Today Data Loaded Time` | Stamped on HTTP fetch only | Stamped on NVS load and HTTP fetch |
 | `Tomorrow Data Loaded Time` | `Never` after NVS boot load | Stamped on NVS load and HTTP fetch |
+| `Tomorrow Price Update Status Message` | *(various)* | `"No data yet"` on boot / after reboot (v1.2) |
+
+---
 
 ### HA entity ID changes
 
 All entity IDs changed due to the node name change from `entso-e-prices` to `eprices`.
 
-**Find and replace in all your automations and dashboards:**
+**Step 1 — bulk find and replace in all your automations and dashboards:**
 ```
 sensor.entso_e_prices_  →  sensor.eprices_
 button.entso_e_prices_  →  button.eprices_
 ```
 
-Then apply the individual sensor name slug changes from the tables above.
+**Step 2 — apply the individual sensor name slug renames** from the tables above
+for sensors whose names changed (not just the prefix).
+
+> **Tip:** After the bulk replace in Step 1, search for any remaining
+> `entso_e_prices_` strings to catch any that were missed.
 
 ### NVS data
 
 The NVS namespace changed from `entsoe2` to `eprices`. On first boot after
-flashing EPrices v1.0 the device will not find any stored data and will
+flashing EPrices the device will not find any stored data and will
 trigger a fresh HTTP fetch automatically. This is expected and safe.
 No manual NVS erase is required.
 
@@ -211,9 +236,10 @@ No manual NVS erase is required.
 ## Migration checklist
 
 - [ ] Flash `eprices.yaml` to the device
-- [ ] Update `secrets.yaml` — rename all `entsoe_` keys to `eprices_`; add `eprices_prov_fee` and `eprices_vat_rate`
-- [ ] In all HA automations: replace `entso_e_prices_` with `eprices_` in all entity IDs
-- [ ] Apply individual sensor name slug renames from the tables above
+- [ ] Update `secrets.yaml` — rename all `entsoe_` keys to `eprices_`; add `eprices_prov_fee`, `eprices_vat_rate`, and `eprices_neg_prov_fee`
+- [ ] In all HA automations: bulk replace `sensor.entso_e_prices_` → `sensor.eprices_` and `button.entso_e_prices_` → `button.eprices_`
+- [ ] Apply individual sensor slug renames from the tables above for sensors whose names changed
 - [ ] Remove any external HA automations that handled midnight bridge, boot recovery, or fetch scheduling — these are now all on-device
 - [ ] Verify the device fetches fresh data on first boot (check `Today NVS Status` and `Today Price Update Status Message`)
-- [ ] Update any HA dashboard cards referencing old entity IDs
\ No newline at end of file
+- [ ] Update any HA dashboard cards referencing old entity IDs
+- [ ] Verify the JSON sensor entity IDs in dashboards — the `⁄` character slug may differ from expected; check against actual HA entity registry if needed