Recorder warning: The unit of sensor.watchman_missing_entities is changing, got multiple

[dummylabs]

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Warning: The unit of sensor.watchman_missing_entities is changing, got multiple (None, 'items'), generation of long term statistics will be suspended unless the unit is stable and matches the unit of already compiled entities (Items).

[Calzor-Suzay]

I think this is the same as #87 https://github.com/dummylabs/thewatchman/issues/87 but I have the same issue. Not noticed it in the past.

Is Watchman the problem or did HA pull something that's made our missing entities explode...

[chemelli74]

I think this is the same as #87 #87 but I have the same issue. Not noticed it in the past.

Part is a duplicate of #87, part is not.

I suggest to rename the issue to something like "Warning caused by non-stable unit {None, 'items'}" to address the other warning.

My log on 2023.7.1:

2023-07-11 17:50:10.265 WARNING (Recorder) [homeassistant.components.sensor.recorder] The unit of sensor.watchman_missing_entities is changing, got multiple {None, 'items'}, generation of long term statistics will be suppressed unless the unit is stable and matches the unit of already compiled statistics (items). Go to https://my.home-assistant.io/redirect/developer_statistics to fix this

Simone

[dummylabs]

Removed warning of sensor attributes maximum size from the description as it addressed by #87