Master server doesn't expire some tapes

Hello,

I have a master server with Netbackup 7.5.0.6 version.

Some of tapes from my ACS(2) robot didn't expire daily.

Image Cleanup jobs run daily successfully with status 0 but tapes stay only with media status FULL and "data expiration" over the d-day.

Someone have some idea to solve this kind of issue?

Thanks in advance,