I have just added a keyfile and was doing some testing
On adding a master password and keyfile I copied the keyfile to a usb drive and unplugged drive. Changed master password with the original keyfile. quitted enpass and restarted it. Plugged the usb drive back in and selected the keyfile on the usb drive (old password) and used my new master password and enpass logged in.
Is this normal or should it be a new keyfile after the master password as changed?