Filament Bulb (YLDP23L) unusable with HomeKit despite advertised compatibility

The 3 filiament bulbs (YLDP23L) i have register on HomeKit but are most of the time unresponsive. For any practical purposes they are unusable.

  1. a forced reconnect to the wifi network helps but not for very long
  2. connection to yeelight app is stable, no issues at all

Anyone has ideas how to get homekit integration workable? I have a mi gateway, can i maybe get them in homekit throug the gateway?