New User Can't See Their Own Toots in the Local Timeline

I have not had this reported from other users, and I do not have this issue myself. A new user (for about 2 days) cannot see their own toots in the instance’s local timeline, but I can. I checked to see if there was a setting related to the visibility of a user’s own toots, but there’s not (that I can find). Has anyone else had this issue? I’m was running Mastodon 2.4.1, but have now upgraded to 2.4.3. The user has tried clearing their browser cache for my instance as well, but with no luck.