Standard league Betrayal Syndicate board reset to impossible state after Heist merge

Something went wrong during the Heist to Standard merge of the Syndicate board.

In Standard I had "hate" connections between almost all Syndicate members on my board and the mastermind at 100%.

In Heist Flashback I did the mastermind once and then didn't run another Betrayal in neither Heist Flashback nor Heist.

After the Heist to Standard merge my board is now fully reset, but with the mastermind button unlocked.
A state that is normally impossible, because the board only resets after doing the mastermind. With mastermind at 100% you cannot have question marks on all members.

I spent a lot of time building the member relationships, so this is a very frustrating bug to have (which didn't occur in previous leagues).

Is there any way to resolve this issue and undo the faulty merge?