[David Stack]

Now I’m VERY late to the party, and as Luke said, “anyone else in the future who might run into this:”

I solved my choppy problem by restarting PP while holding down the shift and alt keys. This seems to clear bugs pretty well, and you know that it worked when it doesn’t show what you opened recently. It’s starting fresh. I also had to re-import some presets that I had, but glad the problem is solved. 🙂