Model malformed in HTML5

What it looks like in the editor/windows apps

What it looks like in HTML5

Is it because of an option I am using when importing or exporting the file? Does anyone know how to fix this?

I used LOD generation on the main mesh and it seemed to fix it.

webgl is limited to 16 bit, so if your mesh has more than 65536 vertexes it wont render correctly.

Thanks for the tip, I’ll keep that in mind for the future