Cannot perform copy operation due to minimum number of devices not large enough

Hi All, 

We are running in this issue with our copy Jobs. One SQL DB backup failed to be copied to tape with Error: 

[64:25]  Cannot perform copy operation due to minimum number of devices not large enough.
Minimum number of devices is 1, required 6.

the concurrency set for the job is Max concurrent to 4 

We were hoping the issue woud go away with DP9, bu **bleep** does not seem to be the case. I found: 

http://community.hpe.com/t5/Data-Protector-Practitioners/DP-Support-Tip-64-25-Cannot-perform-copy-operation-due-to/td-p/6859233

Did anyone else have a fix for this issue? 

Many Thanks!