Fully Kiosk - sensors missing in 2025.1?

I’ve been using FK with a PLUS license on a wall-mounted Fire tablet for a couple of years. Recently (I’m not sure when, exactly) the integration started acting up and so I deleted it and reinstalled. I just did that again yesterday. For some reason, the integration is missing sensors that appear in the FK admin page, most notably, battery level. The sensor has vanished. That means my charger automation no longer works.

Has anyone encountered this issue?

Enabling debug logging and checking logs gives me this on integration reload:

Logger: homeassistant.config_entries
Source: config_entries.py:855
First occurred: 9:11:14 AM (1 occurrences)
Last logged: 9:11:14 AM

Error unloading entry Fire Tablet b0b732e-fb7a73a for sensor
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 855, in async_unload
    result = await component.async_unload_entry(hass, self)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 101, in async_unload_entry
    return await hass.data[DATA_COMPONENT].async_unload_entry(entry)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/entity_component.py", line 204, in async_unload_entry
    raise ValueError("Config entry was never loaded!")
ValueError: Config entry was never loaded!

…and:

2025-01-10 08:51:53.976 WARNING (MainThread) [homeassistant.helpers.frame] Detected code that calls async_forward_entry_setup for integration fullykiosk with title: Fire Tablet xxxxxx-xxxxxxx and entry_id: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx, during setup without awaiting async_forward_entry_setup, which can cause the setup lock to be released before the setup is done. This will stop working in Home Assistant 2025.1, please report this issue

…so, maybe this began in 2025.1?