Ok, this is very interesting! There’s a warning in the log for that sensor:
Logger: homeassistant.components.sensor.recorder
Source: components/sensor/recorder.py:405
Integration: Sensor (documentation, issues)
First occurred: September 27, 2023 at 1:30:10 PM (1 occurrences)
Last logged: September 27, 2023 at 1:30:10 PM
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The unit of sensor.daily_import (kWh) cannot be converted to the unit of previously compiled statistics (None). Generation of long term statistics will be suppressed unless the unit changes back to None or a compatible unit. Go to Link to Developer tools: statistics – My Home Assistant to fix this
Went into the Statistics tab and fixed the issue and now I was able to select Daily Import!
Woohoo!
Thanks again!