Tokyo Scoring Drum Kits make fl studio crash

Hi there. I'm having some problems with Tokyo Scoring Drum Kits by Impact Soundworks.
When I load them in Kontakt 7, I can play with them for a few minutes, then fl freezes and shuts itself entirely after a few seconds.
Happens only with this patch, other kontakt instances don't cause the problem. Did someone have a similar pb or a way to fix it ?