All my projects, as well as every clip in my events have lost its color pop
The color grading is off...where there should be rich color, it's just that color but whited out a bit. The thumbnails look completely fine, but when I click on them and play them, they have that issue.
All of the movies were fine the other day, but I did finally upgrade the imac to High Sierra (not sure if that could be the issue). What can I do to fix this? I have already rebooted the computer, and I've re-uploaded all the clips into imovie. Once they get into imovie is when they're having the issue.
TIA
iMac 21.5", macOS 10.13