Recovery from backup - weird data behaviour

Hi, all,

I tried to upgrade HA and zigbee2mqtt to the latest version and got of the sensors reported the values. So I downgraded back using the latest backup I had (which was created 5 min before I started the upgrade).

What’s happening now is weird. I see in the logs that e.g. the PIR sensor triggers and clears (and I have a screenshot of this to prove it), but if I refresh the log page, all new events disappear from the log (yes, the time period is fine). Also all graphs have no new data even though the e.g. temperature sensors report values. The ESPhome, on the other hand, works fine.

Has anybody seen such weird behaviour? Any hints what to do?