FCPX 10.4.3 Preview Window Dark
WEIRD issue I'm having. Suddenly my FCPX 10.4.3 preview window is extremely dark. Doesn't matter what clip, what project, etc. It's isolated to Final Cut and it's isolated to the viewer. The preview thumbnails look correct, but when you click on them to play/preview, they play back super dark. Any ideas?? Already tried trashing preferences twice.
MacBook Pro (15-inch, 2017), macOS High Sierra (10.13.6)