I have another crash in implementation with blueprints. It also related to mesh component, so every time I try to set mesh, I get this:
[2018.10.11-16.57.26:920][777]LogWindows: Error: Assertion failed: InstancingRandomSeed != 0 [File:D:\Build\++UE4\Sync\Engine\Source\Runtime\Engine\Private\HierarchicalInstancedStaticMesh.cpp] [Line: 2785]
Guys, this is really critical stuff! 4.20 already had 3 hotfixes, and all of them didn’t has fixes for HISM Components troubles!
HISM functionality is very important part of engine to ignore this bugs!