Sample Load Errors wav files 24bit 44.1 Hz

I have a lot of purchased samples octatrack send error message: Sample load error. Format is wav, 44,1 Hz sample rate and 24 bit. All these sammles are working in Ableton, Cubase, Maschine and Logic. What is the problem with Elektron Octatrack? Are there more precise information how the wav files should be constructed for octatrack mk2?