Sample loading in OS 3

I just upgraded my mpc1000 to the OS 3 of JJ and followed the manual in the OS 3.0 RESOURCES topic but I think something is wrong. When I load a sample the way discribed in the manual, then every pad plays that sample, even the ones in an other pad bank. Already turned on the "Sample assign to pad window" to on and I see every pad in the loading screen, but when i hit "Do it", it still loads the sample on every pad...

What am I doing wrong?