edit: I left this up after our phone call to help others that might read it.
I understand you have been cloning matches and it has been working.
If it’s an internal issue with the match I would guess this.
It is just a matter of time that it doesn’t. This is exactly why we do not recommend not cloning and using a fresh match build. Especially for major size matches.
The difference in creating a new match is just over a minute of creation time. Why take a chance?
It is not possible to fix these kind of problems on existing matches.