fix your Windows desktop application so that it recognizes capital letters in the password when you enter them.
Windows desktop application does not allow you to change your password because it doesn't recognize capital letters. Try it.
If you change your password with something that has caps in it (per requirement), it will tell you that you don't have capital letters in your pw and need to try something different.
thank you for the heads up! I've passed the inquiry to our developers. It seems to be a bug of some sort.