Cannot send image and wrong key event

Hi. Thanks for the lib

I have a Stream Deck wit 5x3 Buttons but I have a Problem, that I can not send image or set KeyColor (Try with Example1_Displaying_A_Key.java)-
KeyListener is working, so StreamDeck is detected correctly, except of wrong index "3: pressed" when I press first key (try with Example2_Receiving_key_events.java).