I'm having the same problem, i have installed 1Password X and it locks itself every time I close the Brave browser. I have configured 1Password X to lock automatically after 60 minutes but it's not what happens right now.
Hi @carlosrah! Welcome to the forum!
I have moved your discussion to the 1Password X forum
What you are seeing is normal: because we don't store your Master Password on disk, every time you close your browser you are prompted for your Master Password again, even if your auto lock settings say otherwise, because those only apply to when the browser is running.
However, I have good news for you: the latest version of 1Password X supports Desktop App integration, which allows you to configure your browser exactly the way you would like. Please see this discussion for instructions on how to configure the beta version where we are currently testing this feature.
I hope this helps!