When I start a cold and dark flight with the  modern cockpit avionics are off and won't turn on even with engine running, alt on and avionics on.

Is there any fix for this? I can't fly the plane.

I found the problem.

Avionics work fine if you start from the runway but not from cold and dark.

So there is a problem in the apron.flt file.

I tweaked and few lines and that was the problem so it should be an easy fix for the dev team.

Hope this helps get a fix out asap.

Cheers.

Would you consider sharing the changes that you made? I've no idea what to change.