Hi sister. It sound like this is the new policy implemented that if there is a case with problems/complicated/critical info OR case has been in process above the normal routine timeline and if such applicant order CAIPS it can take 60 days to release. I assume they want to consult with CHC-I to make sure things are correct, info is updated and to assure there is no such thing from their end which applicant take against them. So they are required 60 days time for this instead of 30.
Other possibility is our cases could be so close to finalize [Cases are with decision making officer] and CHC-I might have advised them that they are anticipating a decision with in the next 60 days so put a hold on release till a decision is made.
This never happened to any of our members dealing with CHC-I until recently Mariah sister received the same response, I received same letter last week and now you are the 3rd person with the same 60 days notice. I ordered on Aug 22 which due on Sep 22 but now looking for Oct 22. Hope this help.