“My Working” was everyone’s working
A bug worth writing up honestly, because the shape of it is instructive.
“My Working” — the folder new objects land in — was a single shared folder. Every user saw everyone else's work in it. It looked personal and was not.
The fix routes each user to their own backing folder server-side, so the folder means what its name says. Found during an audit rather than reported by a user, which is the better outcome, but it sat there longer than it should have.