Aqara button not supported by ZHA?

You did not mention the exact device model but I believe that all models should work (if the battery is OK), however some devices are a bit buggy and may require re-pairing a few times while the device is kept alive for the device interview to complete, but note that the device interview during the pairing/joining process will almost always fail if you have too much EMF interference or not enough Zigbee Router, so before troubleshooting any deeper first try re-pairing/re-joining it again after you read and followed the tips here → Zigbee networks: how to guide for avoiding interference and optimize for getting better range + coverage

More barebone version of that information is also available in ZHA docs here: