Hi @George, and anyone else having this issue
I made my model in blender. Unfortunately I did not find a solution or what caused this. However, I found a workaround.
I figured that these seemed NOT to cause this issue:
-material or it’s settings
-armature or animations
-unapplied modifiers (mirror modifier & triangulate)
For testing I created a default cube object in blender. Separated a single polygon from the character model. Merged that polygon to the cube object. Tested to export that cube object to Zapworks. And it had this issue! It’s like the original model or it’s vertice/polygon data is corrupted somehow…
So what I did was basically remesh the model. In my case it was okay since it’s a lowpoly character and rather quick to do with help of shrinkwrap modifier. Then UV unwrapped it again and placed the UV islands to somewhat match the original (because I didn’t want to paint the textures all over again).
Here’s the ‘corrupted cube’ and the remeshed new model:
I hope his might save time or help someone having the same issue