MeshDebugPluginMaterial Confusing UV

I have a question. I am currently using version 6.48 of babylon, and my model import using PrepareMeshForTrianglesAndVerticesMode has a UV disorder. But for the latest version of babylon, the display effect is normal. May I ask what has been fixed in the latest version of PrepareMeshForTrianglesAndVerticesMode.

False Indication:


Please switch to 6.49 to see the effect

Last change on the function has been done by @alexhuber

The fix is this one:


Thank you