Bug / Crash Post Unity 2019.1 error

[Saismirk]

Hi,

This is due to a change in Unity's mesh import pipeline, not Obi's fault. There's nothing to fix from our side. Extract from Unity's change log for 2019.1:

Code:
Asset Import: Extended Optimize Mesh option on Model asset import settings to allow optimization of Vertex Order and Polygon Order to be controlled independently rather than both being controlled from the same flag. NOTE: Performance improvements to the underlying mesh optimization code may cause vertices to be generated in a different order than in previous Unity versions. If you rely on vertex ordering in the optimized mesh data such as for vertex painting be aware this data may need to be re-generated.

This is the case for built-in samples in Obi. Simply select the meshes affected and disable vertex and polygon order optimization in the inspector. That will fix the issue.

Unfortunately this did not fix the issue, after having reimported all meshes with no mesh optimization, and once again reinitilized all shared topologies and cloth setups, the issue persists.