Modifying collision shapes on a Skeletal Mesh with multiple cloth assets crashes

For skeletal meshes with multiple cloth assets in use, modifying any of the bone's collision body setup in the physics asset causes a crash. 

1.  Open Content Examples
2. Open the Owen_Physics asset
3. Select a bone and Modify the collision body setup (center, rotation, anything)

Expected: Body is adjusted acordingly

Result: Crashes

Access violation - code c0000005 (first/second chance not available)

NvClothPROFILE_x64!nv::cloth::SwSolverKernel<__m128>::solveFabric() [d:\build\++ue4+release-4.20+physx_compile\sync\engine\source\thirdparty\physx3\nvcloth\src\swsolverkernel.cpp:624]
NvClothPROFILE_x64!nv::cloth::SwSolver::SimulatedCloth::Simulate() [d:\build\++ue4+release-4.20+physx_compile\sync\engine\source\thirdparty\physx3\nvcloth\src\swsolver.cpp:292]
NvClothPROFILE_x64!nv::cloth::SwSolver::simulateChunk() [d:\build\++ue4+release-4.20+physx_compile\sync\engine\source\thirdparty\physx3\nvcloth\src\swsolver.cpp:161]
UE4Editor_ClothingSystemRuntime
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_Core
UE4Editor_Core
UE4Editor_Core
UE4Editor_Core
UE4Editor_Core
kernel32
ntdll

[UE4.20] Editor Crash; NvCloth; Physics Asset