Could you please provide me a log files (send them via private message)
How to:
While holding alt key click on key icon in top bar
Select option Logs
It will open logs folder in finder
Select all files, compress them to single file and send it to me
I will check them out
Note that if you can’t unlock passwords with master password you are 110% is correct there is not much even we can do. Our password manager application is written to be secure and if the application doesn’t accept master password, then there is practically no way how to get in.