Firstly, there are many ways to get Zigbee into Home Assistant so you need to start by detailing which specific Zigbee solution you using and how exactly. Secondly, maybe your problem is automation, not Zigbee?
Anyway, before you troubleshoot anything around Zigbee any deeper make auew to read and try to follow these best practices and tips regardless of which Zigbee solution are using → Guide for Zigbee interference avoidance and network range/coverage optimization