Previously Created VTL not found when trying to add to device manager.

We are on Oracle Linux 7.4  and we just uninstalled 11.1 and installed 12.3. When we try and add the VTL that was created by the 11.1 version the new 12.3 version does not see the VTL  We have confirmed the VTL still exists and can still be accessed at the OS level.   Does anyone have a fix for this issue or have any ideas as to what might be causing this ?

Thank you, Russell