Mesh Paint causes crash

I’m trying to vertex paint on one of my meshes, but UE4 crashes every time I click on the paint tab. I’m trying to vertex paint using tiling textures imported with Substance Designer.

UE4 doesn’t crash when I click on other meshes. I thought it could have been to do with UVs since my UVs were not set up yet on the entire model. But even just importing a part of the mesh with correct UVs didn’t work.

Things that haven’t worked:

  • Imported only a part of my mesh, in
    case my mesh was too large or had too
    many vertexes.
  • Moved my UVs inside 0-1 space.
  • Made sure I had no overlapping UVs.