ION Discover DJ and update to 2.5.0 -- one deck no cue/play

all,
searched quckly here in the forum but couldn't find concusive answers (well found several dead links).
My little girl will become 8 yo and as she likes playing with my gear (CDJ850s DJM850) I decided to give her a ION discover DJ controler so that she can play herself. She really likes it ;-)
I did find that the original (1.3.2.?) s/w was ... well limited a bit and I upgraded to Cross as suggested on this website.
I found out that with the original s/w I can (stutter)cue and lay OK; with the new version it seems something is wrong with the mapping.
The left "deck" cannot start a track, the right one does. If i start the right, th eleft cue and play leds will blink as if it's in sync with the playing track. But as said -- no way to start a track.
Revering back to the old version directly regains deck control.
What's up with this? Is there a bug in the mapping?
searched quckly here in the forum but couldn't find concusive answers (well found several dead links).
My little girl will become 8 yo and as she likes playing with my gear (CDJ850s DJM850) I decided to give her a ION discover DJ controler so that she can play herself. She really likes it ;-)
I did find that the original (1.3.2.?) s/w was ... well limited a bit and I upgraded to Cross as suggested on this website.
I found out that with the original s/w I can (stutter)cue and lay OK; with the new version it seems something is wrong with the mapping.
The left "deck" cannot start a track, the right one does. If i start the right, th eleft cue and play leds will blink as if it's in sync with the playing track. But as said -- no way to start a track.
Revering back to the old version directly regains deck control.
What's up with this? Is there a bug in the mapping?