I wanted to change my password, so went to “my profile and settings” (https://profile.autodesk.com/security), chose “edit” password and used my password manager to generate a password that was 70 characters long. It was saved, and I received an email saying my password had been changed. The website logged me out, but I couldn't login with the new password.
I tried both the old password and the new password, but neither worked. I reset my password. I received an email and clicked the link to reset. On that page it says that a password can only be 50 characters. That may be the reason I wasn't allowed in with a 70 character password.
