I'm having a very similar problem with a dyanamic cloth simulation I'm running on an animation. I've also experienced this same problem before. The cloth will drape, and start simulating to a certain point, then just stop as if it finished. Not freeze up or anything, just plain stop calculating. It's extremely frustrating. I've tried everything, including making CERTAIN there are no initial intersections, etc. Still, when it reaches a certain range of frames, it just stops short. I've never had this problem on small test animations shorter than 30 frames, or never when draping cloth for a still image... but it seems persistant in larger animations with lots of keyframes like a BVH, and also happens most often when working with Judy or EJ. In another thread I started about this, other people reported the same thing happening, with little or no solution. Anyway, if you find out why it's doing this, let me know... maybe it will help solve my problem as well. I've tried every option in the cloth room controls, and adjusted everything I can think of, but no-go.

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Tools :  3dsmax 2015, Daz Studio 4.6, PoserPro 2012, Blender v2.74

System: Pentium QuadCore i7, under Win 8, GeForce GTX 780 / 2GB GPU.