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:
-export settings
-texture
-material or itās settings
-normal orientation
-armature or animations
-unapplied modifiers (mirror modifier & triangulate)
-mirrored UVās
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! Itās like the original model or itās vertice/polygon data is corrupted somehowā¦
So what I did was basically remesh the model. In my case it was okay since itās 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 didnāt want to paint the textures all over again).
Hereās the ācorrupted cubeā and the remeshed new model:
I hope his might save time or help someone having the same issue