This may have been reported already...
I'm finding a lot of the time if I change password to a generated password, I never get an update login prompt, so I have to manually go to saved password history and copy/paste it in.
Also when I hover over the login website from the address bar area if I try to copy a password the box just disappears when I attempt to copy.
This is on mac with safari browser and 1password safari extension
Fully updated on yosmite os.
Latest 1password for mac purchased from app store.
1Password Version: Not Provided
Extension Version: Not Provided
OS Version: Not Provided
Sync Type: Not Provided