Not work on Android

[agguser]

On Android (14), on Google Chrome browser (133.0.6943.89) (and Brave), the web site does not go to the next lesson when the current lesson has completed (all characters have been typed). Also, there is no sounds.

On Firefox, sounds work, but does not go to the next lesson, just restart the current lesson.

Is there a way to go the next lesson? Enter key does nothing.