Yes, this seems to be a fairly widespread issue, though we've yet to have any reports of it occurring in Firefox. We've been instructing our faculty to use Firefox when they encounter it.
It's been a topic of discussion in the IRC chat, but the Instructure engineers were saying they've been having difficulty reproducing it in an environment they could use to troubleshoot.
Having said that, we've started to get reports of identical symptoms when accessing LTIs. but we've been unable to confirm they're related. So, it's possible the problem is even more extensive than first thought.
Update 2021-12-10 @ 9:15 AM ET
Please be aware that, at this point, it has been confirmed that the Files area of a course can produce the same issue.
This discussion post is outdated and has been archived. Please use the Community question forums and official documentation for the most current and accurate information.