not literally 2 miliseconds, but you get the point
This is why you get a password manager to manage the other password manager.
If you create a secure password in the first place and only ever use it for bitwarden whats the point in changing it?
It happened to me once. I had to wipe my vault to reset the password. Fortunately I had a backup lying around. Folks remember to take regular backups.
Clearly the solution is to get a second password manager to manage your password manager password for you.
If you saved the master password in BW as well and have it installed on another device like a phone, would it work to put the phone on airplane mode before opening the app so the vault doesn't refresh? Also, does changing the master password automatically remove the pin lock so you're forced to use the master password to get back in?