Try to pair them again without removal and then restart Homey…might be working as well. But if they works, it’s might not be required to do so… even myself I consider it as kind of indication that all is fine or not.
Just for sure, you are not using your Homey eg. for years even never performed Zigbee reset, right ?
You may also run script to see, if anything is really bad - [Community Survey] Homey v5 ZigBee Health check and statistics collection (HomeyScript)
