All 23 slots are reporting empty (including the cleaning tape slot 23). Tapes are in the unit. Problem started when exporting a tape it worked as expected. Another tape was sitting behind that tape. Had to open the rear panel to remove the second tape.
In addition the following error is given.
I have removed and re-seated the magazines a number of time and ensured that the door is closed.
Also tried to use the device menu to bulk unload tapes but the tapes are not recognized.
Any help would be greatly appreciated