Strange issue with my sound
 

I've created a sound, but for some reason, and I'm not sure why, one of the oscillators is behaving strange. I'm sure it's a simple problem.

Anyway, when I move the keys up they keyboard there seems to be some sort of modulation increasing as it goes up. Like an LFO on the filter cutoff BUT there are no LFO's assigned.

I've tried everything. I've backed up the sound and stripped everything from it.

Does anyone know what could be happening?

could you upload the patch pls ?