Resolution Issue with Update v3.0

Hi, since the automatic update through Steam happened, I cannot play the game anymore in the native resolution of my monitor, which is 3840 x 2160. It seems to fall back on a ridiculous low resolution(*), which stops making this game playable - as soon as one pulls out the icons for ships etc stay quite big and make the whole screen seem to flicker.

I have tried adding the resolution to the .ini file, but nothing helped.

Is there a way to uninstall this update?

Thanks,

Ali F.

(*) while the settings dialog's option is either still on Full Screen or not