Backup Job on Tape Get not finish

Hi Experts,

I having the same old problem.

I created a Job, putting my backup in the tape: Files, SQL, Shadow Copy and System State.

Ok. There is 51 GB of Backup, but when the job finish this 51 GB, it doesn't finish and doesn't eject the tape.

I already Updated, My backup is 2010 R3 and updated.

Anyone can helps me?