Reply to Maschine LED Feedback problems! Need help!

I recently got a Maschine for normal use (production with the Maschine software) and for use with traktor.
Im making a mapping wich is quite big, the 16 pads alone need 256 mapping assignments to work in the way i want them to...
Im about halfway thru the mapping process, and started adding some LED feedback.

The LEDs work fine as they are suppost to, so the mapping is good. Then at some point they freeze. The midi input still works, but the LED that were lit are frozen on, and the rest is off.
The only way to reset, is pul out the usb cable and start the unit again...

anyone experienced something like this?
Is the problem in tsi file size? the maschine unit itself?
all help would be much appreciated!!

ps. im running a new macbook pro 15" with TSP2