OK - I finally got the patch open and removed the vectral~ part. Played with it for about 20 minutes and no crash. It seems that is what is causing the problem insofar as I can tell because with vectral~, it crashes almost immediately. My reasoning could be flawed here though? Hans, I know you mentioned to me that the fix you did to get del/sqrt working had to do with vectorization... does vectral~ then need a fix for that reason? It is from the cyclone lib, and for what it's worth is included standard in pd >=.40
It's an important component for spectral work because it allows attack/release on the bins, making a much smoother and natural sounding effect for vocoding, gating, and other fft-based transformation. I am not a C programmer, but let me know if I can help in any other way.
Kevin