Traktor Pro 4 trouble

exotys

With imacOS Sonoma 14.5, traktor kontroll S8 and two numark NDX900

The programm Traktor Pro 4 closes on its own when I use a stems file.
When I click and drag a stems file, no problem.
When I select a stems file with my controller, sometimes it happends.

Did anyone ever have this problem?

Thanks