Aqara devices are lost

You mean unplugged or switched off?
I mentioned Osram b/c there’s only one model working well with Aqara.

Also, did you ever perform a complete zigbee reset after fw v5.0.x was installed?
It’s a pain (pair all devices again and repair all flows associated with them), but there’re several positive experiences reported of zigbee performing quicker and more stable.

That behaviour has been reported and known to Athom. But those zigbee networks still worked fine.

Sometimes PtP solves the weirdest issues, did you try unplug the poweradapter from Homey for at least 11mins?