Sorry for this circumstance But I am not able to start a new topic

After Engine start or during flight suddenly the Radio panle and
Sorry for that circumstance, but I am not able to open a new topic.
I think about software bug

After Engine start or during flight suddenly the Radio panel and Autopilot panol shuts down.

It is not possible to tune VHF, VNAV and ADF in the radio panel and not possible to power on the autopilot panel

I am using 2D mode and both panels in singel windows.

All othe panels are using well

Are there any ideas about bug?