pelos

will be easier to diagnose if you post a hip file. you might need subsamples in the solver, fix the collision geometry, etc...

since this is a procedural creation for mantra not sure will work with redshit. at least the procedural and the shader, but all the tool for creation styling animation dynamics should work fine, and then you can just merge the skin and the curves into other objects and use those to render with Redshift, (sorry i dont have that render)

hey, just uploaded the new version, fixed some of the params that are new in the 18.5 https://polybevel.wixsite.com/fabio-hair-system/download [polybevel.wixsite.com]

with some additional features, hairs as volume, now includes DOPS with vellum, and FEM
i attach and example on how to use FEM, on the hair, just to keep certain hairs in shape instead sim each curve.