The title says it all!
In my case I realised my Hint did not help me remember my Password.
Once I eventually got logged in hours later…
I have gone into the web vault to improve my Hint.
I cannot update my Hint as there is only a Change Password and it forces a session logout on all devices.
This serves no purpose.
Sorry but the hint is just a hint, there really is no other security it needs to interact with and should be separately updateable.