Thanks support since when we run data integrity this is an example of the error:

Error: Account [104000 - ] current balance does not match net change record.
Error: Account [104000 - ] next year opening balance does not match current year current balance.
Master / Net Changes ... 2 error(s) found

I am going to suggest (as a pain as it might be) when they are ready to post for both Ledger users exit the system, one log back in check integrity to make sure it passes, then backup then post until this is resolved or we catch something unique to their environment.