I’ve been using it without problems for years now. It got a firmware update last week and that too is working great. This behaviour is typical to Zigbee coverage problems. Maybe place a mains powered zigbee router near?
You can pair it again, but it depends how you build your automations if they keep working. If you avoid using device actions and conditions like advised below, then it is as simple as making sure the entity_id is the same afterward.