MacBook Pro 10,1 (15" Early 2013), OpenCore Legacy Patcher 2.2.0, macOS Sequoia (15.2 - 24C101)
This error first occurred after upgrading Quicken 8.0 to 8.01
If "Relaunch" is chosen the file is opened successfully but several of the accounts display balances that are incorrect.
If "Quit" is chosen, the next time Quicken launches it opens the file successfully but, again, several of the accounts display balances are incorrect.
Restoring the most-recent backup fixes the account balances but the error can happen again on a subsequent app launch, most likely on the first launch after reboot.
I searched the community discussions and figured it may have something to do with the file being located on the iCloud drive. Moving the file to a local folder did not change the behaviour.
I am a retired Windows driver developer. I'd be happy to provide further info to assist developers to fix this issue.
Cheers,
Steve