I’m brand new at this, so if the question is dumb please excuse me.
Version 1.2.2; simple animation; diagram of a folk dance; looks OK using Play in the workspace (or stepping through the keyframes); even looks OK when rendered to a .gif. However Preview insists on showing frames that were fixed hours ago (like I said, I’m new). Did I do something wrong with those incorrect frames? Can I get rid of them? Is it a bug in the Preview routine that I should just ignore?