Yes, they’re in the preview window, best, full & pre-rendering don’t help. Project properties quality didn’t help either 🙁 Rendering and preview look identical.
Trying to attach a pix, as you can see it looks like horrid interlacing, but the input doesn’t say it’s interlaced, it plays fine elsewhere, and stepping frame-by-frame in 13 looks fine, except for the trial watermark and the artifacts because the input’s so low rez.
Clearly upgrading might help, but that’s $ that could go to something else at the school.