MCC Monopolised: coop time not registering

Having an issue while deciding to undertake the monopolised achievment on COOP

Attempting the run on COOP locally (same xbox) initially on the pre patched version of MCC playing offline with our own profiles. Completed gravemind and regret then decided to update the game and get online in order to sync our times

My friend has attained the times we have achieved as confirmed via the campaign times screen on the game and also checking waypoint. I however have had no luck. My game shows legendary completed on COOP for regret but waypoint shows this at the default 1:40:39 where we actually gained a time of approximately 24 mins for that level (we didn’t save Quit or anything as I know this causes the game to default to that timing) . As for gravemind the game has not registered any attempt on COOP.

It seems that I have had syncing issues with the server, has anyone else come across this issue and have come to a solution?