Windows suck.
Run Regedit.
Open
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers
Locate Tortoise entries.
Make sure they are at the top of the sort list, if necessary add things like " 1" to the name. F5 to refresh.
Kill all running Explorer processes, rerun a new Explorer process from Task Manager, if necessary. If you are too scared, simply relogin.
What happens is, OneDrive POS interferes with the Tortoise shell icon overlay extension. Mikisoft has become cleverer and does the same kind of trick in the ordering with spaces in the One Drive names. Simply sorting Tortoise names earlier than One Drive icons solves the issue.
