One of our Squads had their Definition of Done set up to include both Release and Post Release Sign offs. After changing their Board to reflect our organisation level Definition of Done (i.e. ready for release but not deployed) a whole bunch of items in their backlog are marked as 'Done' incorrectly.
I've checked the Transitions and mappings but can't seem to resolve. Anyone dealt with similar please?
Please don't reply with the rule that Done has to be the last column on the Board as I've got 2 other boards with column to the right and they work fine 
Attachment 1: How their Board used to Look

Attachment 2: What I Changed it To

Here's the Problem in the Backlog
Thanks in Advance,
Lenny