The culprit for that behavior is the "application data" junction, located in "c:\users\%username%\appdata\local".
Users, like you and me, tend to get the ownership of folders (and then forget).
We need to restore its permissions and its owner (indeed, it seems now its working correctly).
Default permissions:
Everyone:(DENY)(S,RD)
NT AUTHORITY\SYSTEM:(I)(OI)(CI)(F)
BUILTIN\Administrators:(I)(OI)(CI)(F)
YourPCName\YourUserName:(I)(OI)(CI)(F)
Default owner: SYSTEM
Seeing the c:\Users\Default\AppData\Local folder, I have an older "application data" (November 2017).
Its permissions:
Everyone:(DENY)(S,RD)
NT AUTHORITY\SYSTEM:(I)(OI)(CI)(F)
BUILTIN\Administrators:(I)(OI)(CI)(F)
BUILTIN\Users:(I)(RX)
BUILTIN\Users:(I)(OI)(CI)(IO)(GR,GE)
Everyone:(I)(RX)
Everyone:(I)(OI)(CI)(IO)(GR,GE)
