i've opened SR for this it's happening for us as well after we upgraded from 9

@DEMdev 

we use this command 

"C:\Program Files\Immidio\Flex Profiles\FlexEngine.exe" -s \\DEMShare\VDIProfiles\DEMProfiles-PROD\%username%\Archives -i \\DEMShare\VDIProfiles\DEMConfig\General -R -C -F -v -f \\DEMShare\VDIProfiles\DEMUSERLogs-PROD\%UserName%\Logs\FlexEngine-Brown.log -M 2048 -l DEBUG