Hi Guys,
Im still having a problem with the mixer display sizing incorrectly when pressing F3 but ive found a solution that seems to fix it and i wanted to share it (apologies if it has already been shared) Just hoping to share my findings.
If click the “Set Up Window Layout” on the mixer page (button top left) And then select it to show the Control Room / Loudness meter the mixer window seems to resize itself properly. Hope this helps