I can confirm the cloth sim error has been happening to all my characters (using apex cloth simulation) in 4.14, I’ve tried updating my maya physx plug-in and re exporting the clothing asset and the meshes into unreal, but the issue remains.
Also just to clarify the error seems to be that simulated vertexes with 0 weight (so they just deform from skinning) are sticking to the world origin for some reason.