MaterialTextBox "Password" Attribute is strange

[byungmeo]

Develop Environment : Windows 10 / .NET 6 / VisualStudio 2022

sorry for my english..

I think MaterialTextBox "Password" attribute is strange

1. run debugging (F5) and click the MaterialTextBox on app running. (does not matter debug and release setting)
2. Close the form
3. Does not end debugging mode (if i press the stop button, finally end debugging mode)

this problem only to occur by only MaterialTextBox with set Password attribute on "true"
i tried MaterialTextBox2 and MaterialMaskedTextBox (use PasswordChar Attribute) and not occur same problem.

Thank you.