Some configuration in ZHA not working mainly remove function

Configuration Zigbee
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1

I had a Dusun Gateway installed with HA system and run some tests about the ZHA integration. Got the following five issues,

  1. ZHA integration fails after device restart, got several times with one hundred time tries
  2. After removing the ZigBee device, paired the devices again. The first attempt fails, but the second one succeeds
  3. After the ZigBee device is removed and the gateway is restarted, the device information remains
  4. Sometimes failed to remove the ZigBee device. I need to restart the device to remove the ZigBee device
  5. If the network is configured for 50 times, sub-device information is incomplete

Test with Homeassistant blue board using ODROID N2+ as well and got the same result.
Would be appreciate with any assistance.