When importing a mesh on Roblox it appears to be forcefully applying some planar decimation on what it feels as unnecessary faces. While in theory this is a neat idea, this should be a setting, and I’m unsure as to what the underlying cause for it is.
If I import a mesh, I expect the mesh to match my geometry 1:1 without any sort of changes, unless I specifically specify otherwise. I wasn’t even aware that this decimation of geometry was a thing in which existed.
Here are a handful of screenshots of my mesh.
Imported from Blender
Previewed online to ensure its Geometry was correct.
Result from Roblox Studio
Video of Importing Process, using the 3D importer has the same results
Expected behavior
I expect my mesh to retain all of its geometry provided unless specified otherwise. I have no beta features enabled, and this just started recently. I have to imagine some flag was enabled?