Philips hue issue + OSRAM + HA

hello,
using philips hue integrated with HA, i have the issue that OSRAM bulbs linked with hue bridge are most of the time with status Unreachable. Even the state is Unreachable I can control these (on/off) via hue app,
but they cant be controlled via HA.

Sometimes - based on weather - they switch from Unreachable to normal state in hue app… i have no clue whats going on. I changed zigbee channel of the hue bridge multiple times…

image

edit2:
i did test, ie to disconnect bulb from 230V few times,
then it shows again in hue app as Available. Weird.

any idea?
Thanks

same problem here, never found a solution (the lamps are accessible though via google home).

weird,
anyone any idea? bad design of OSRAM bulbs or issue on the HUE end?