Hotspot: iOS clients capatlizing username and/or password

Recently, I am having a LOT of issues with iOS users getting the first letter of their username and/or password capitalized when they signup but not when they later try to signin.
This is causing a fair number of support calls and complaints…

As it is ONLY iOS gear that has this problem, and not all the time, I have found no fix for it. So, I plant to put a warning on the signup page explaining it…
But I’m not having much luck changing the web pages in MT hotspot without breaking them…
Does anyone have a template of the MikroTik Hotspot pages and what can and can not be changed about them?

Alternatively, some way to force Hotspot/UserManager to convert usernames and passwords to all uppercase would work as well.

Ideas?

All our gear is on ROS 5.25

Thanks, we will look into it.