I recently updated my projects from unreal 5.3 to 5.5 and had to redo the bake, but to my surprise the scenes that previously worked with GPUlightmass make the unreal build crash and close instantly, at 0%.
So searched some posts here on the forum and saw suggestions of not leaving the mesh material slot as “NONE”. But unfortunately it doesn’t work.
Importante part of que log
Assertion failed: GeometrySegmentIndex == RayTracingMeshCommand.GeometrySegmentIndex
Apparently what it indicated was some problem in the geometry, even activating raytracing, adjusting the geometry,UVs in 3Dsmax the bug persisted in 5.5, while in 5.1, 5.2, 5.3, 5.4 this error never occurred, even though it was the same scene, with the same geometry and materials!
Could someone help me with this problem?