I have forced an ActiveFull (see screenshot 17.01.2016) for one BackupCopyJob. This ActiveFull is marked with "R". Why wasn't it deleted by GFS-Retention?
It seems that you currently have three regular restore points (2 .vbk's and 1 .vib) with simple retention set to 2, which looks like an unexpected behaviour. Kindly, open a ticket with our support team and let them investigate it directly. Thanks.
As far as I know, your case has been escalated to R&D department and is currently under close investigation. We will update the topic, once we have more information. Thanks.