Self-update won't work unless I start game as administrator

If I launch the game, and there’s an update to download, and I let it self-update, there’s one of two behaviours.

If launched as admin: Update works as expected.

If launched as a normal user: Update either stalls forever at 0%, or crashes with a generic error.

I’ll see if I can get error details next time, but the last time this happened, it just stalled forever at 0% (I gave it quite a while) and I didn’t have anything to report.

(Version: 0.41.00, but this happened in the previous versions too.)