NBU 7.6.0.3 VIP SQL manual backup

Hello all,

We have  NBU 7.6.0.3  installed and we are backing up, with VIP (Enable SQL Server Recovery) a server that has an SQL 2012 installed. The backup with the VIP is ok, but if you make a manual backup of the data base and you want to restore from this manual backup, we cannot see this manual backup, we just see the VIP backup.

Does anyone know how to solve this? 

Thanks in advance.