Raspbee and HA on RPI3 with raspbain and python virt env

hi all,

I have HA installed on RPI3 with raspbain (Dresden image) and python virtual environment.

in past all seems to run ok.
at this moment the front end of HA seems not to communicate with RaspBee (and visa versa).
Automation of HA works fine. light bulbs switch automatically on and off. This is ok.

When I wanna switch on a bulb on the front end of HA, the switch shortly goes ON and after few seconds go OFF. light bulb stays off.

When I use deCONZ, the light bulbs will switch as aspect.

wny idea’s?