Cannot unload medium, target slot appears to be occupied

HP Data Protector 6.11, when the backup job is finished and it tries to unload the medium, receive error "Cannot unload medium, target slot (xx) appears to be occupied. Backup statistics ahow as 1 completed media agent and 1 failed media agent. This error started a few days agao. Happens on all backup jobsa, different tape drives and different slot numbers. Any suggestions as to why this is happening?
Parents Reply Children