Encryption Key tag dissapeared after Upgrading to Netbackup 7.5.0.3

Hi,

I had a Soalari 10 backup system running Netbackup 6.5.5 with NBKMS (Netbackup key management) hardware encryption enabled. The system has been running for a few years without any issues.

I recently upgraded the system to Netbackup 7.5.0.3 and after that I am not able to view the Key Tag (encryption key tag is gone).

bpimagelist -backupid <backupid> -L shows that the tape is encrypted (Flags:            0x40  (Tape Encrypted)) but the Key tag is *NULL* I was able to see the key tag in previuos version.

Flags:            0x40  (Tape Encrypted)
Key tag:          *NULL*
STL tag:          *NULL*

How can I tell or be sure that the data is encrypted?

is this a new feature os a bug?

Thanks