Can’t set family load

I don’t understand the behavior of the Anker Solix system.
When I manually change the schedule (since there’s no way to temporarily overwrite it without changing the schedule) and set the charge priority to 100%, it still releases up to 450W, even hours later.

I don’t understand why this is happening. Is there no way to fully stop sending electricity toward the house? What happens if we disconnect the micro inverter from power? Does the battery still charge?

Also, even when I set a normal mode and a power limit, it seems that I can’t go below 100W. However, this doesn’t seem to work as it keeps fluctuating from 14W to 280W, which is very inaccurate.

Screen recording of the issue :