Lately when I make some code edits, I get big red X’s under the players. I try taking the playback to the beginning, but no matter what, I can’t get rid of it. When I click on them, it usually says something about can’t execute statements of undefined or something like that.
So I just reload the page, and all works perfectly, no X 's.
I’m sorry I can’t provide more detail ATM, but if this is a known issue, I won’t bother trying to reduce it to a minimally reproducible bug.