I created an account for a 401k vendor that our company recently switched to. During the registration process I used a password manager to generate a 14 digit random password.
Imagine my surprise when I went to login to the newly created account only to find out that the login screen enforced a character limit of 8 characters (both with a textfield attribute and js). This limitation was not enforced during registration!
I had to edit the page in developer tools so I could actually paste my full password to login. The limitation was purely client side.
In macOS I use Keyboard Maestro, which allows you to create a macro that pastes the current clipboard by typing. Very handy for these no-paste text boxes.
this leads to a situation where I have a 100 digit hashed password I have to type in by hand.
usually I just create a new account, preferably somewhere else.