I had that happen because of length at an online service we needed to use in high school. I believe my password had 9 characters. After requesting a password re

I had that happen because of length at an online service we needed to use in high school. I believe my password had 9 characters. After requesting a password reset and experimenting I found that the registration form would allow you to enter a password of any length, but the login form would only accept up to 8 characters. What really shocked me was that I was the only one of my classmates that used a password longer than 8 characters.