I have seen this topic from years ago but nothing recent when i searched for a solution. I just enabled end-to-end encryption, and i got this message.
NC Personal Security asks for the old log-in password and the current log-in password. Unless you manually type them in, you cannot click on the update private key password. I am able to do so but it says “saving” but it never becomes “saved”.
Note sure if you can see the picture but hopefully there is a simple solution.