Hi there! I recently downloaded the latest version - the one from earlier this month, I believe - and when I ran it, there was a little command line window that popped up with the exe. When I went to select a lesson, the command line window showed me an error in yellow text:
WARNING: This control can't grab focus. Use set_focus_mode() to allow a control to get focus.
Does that mean something is wrong with the app I downloaded? Is there something I need to do to work around this error?