Hi Razbam,
I have that issue for some time now. If I set the red panel background lighting to on (side panel and front panel), there is some flickering. Also, if there is daylight (sometimes only from behind me), the red panel background lighting goes off.
Here at the ramp, the knobs for background lighting at the 60% mark:
Here some seconds later while taxing (after turning round about 120°), same lightning settings:
And here 1 second later, without any changes on the lighting:
I don't know if I have time on the weekend to do a short video to show you the flickering, maybe you already know this bug.