No, I don't know if MBAM thought your files were rogue or not.
Without reporting it at the MBAM forum, you probably won't ever know, either.
If there are rogue files in that folder (which I think unlikely) wouldn't you rather know about it?
I'd re-install MBAM, update it, try again. Might've been a one-off. But if you're still getting detections on those files, particularly when another user is not, that needs investigation.