GMSAs on CIFS from QoreStor Container in version


I need to know if GMSAs on CIFS shares on a AD joined Qorestor are supported in version  I am attempting to write SQL backups to the share via UNC path name and the GMSA has READ/WRITE in NTFS on the security of the folder and for one reason or another the SQL job keeps spitting out access denied.  I have tried nesting the perms into another group because if we add them directly the QoreStor spits out errors about the domain being unavailable.  Anyways, its functionality that we need to do backups in SQL and the Qorestor is the only reason fo us to use this device, if not we will be looking elsewaher for feature parity in windows.  Please advise.