Terribly sorry to bother everybody with beginner problems, but I'm positively stumped at the moment. I made an additive synth whose fundamental frequency is controlled by a vslider. Upon loading the patch the synth works just fine, but once the fundamental value is adjusted it introduces a square-wave-like buzz into the signal that can't be removed unless I end up turning down the master volume (an hslider being fed into a multiply object). I have fifteen oscillators whose individual volumes are controlled via hslider, and the really strange thing about this setup is that the aforementioned buzzing noise persists even if all the oscillators are individually turned to zero. I know it isn't a problem with my hardware, as a tabwrite reveals that the waveform is nowhere near clipping. Any help would be massively appreciated.
Patch included below