Hi Mark
We do have a platinum licence so a support case is an option. I was just looking around this site for a solution so thought I'd ask here in case somebody else has seen the same issue. We're still running version 7.9 on this cluster and we're about to upgrade to 7.12 so I'll do that first and maybe it will resolve the issue. If not I'll raise a support case.
This is a screenshot of the problem:
Thanks
Craig.