Missing triangles on some imported models

[Gopmyc]

Description

Some imported models are missing triangles after import (visible holes on the mesh).
The issue appears on specific assets and is not consistently reproducible on all models.

To Reproduce

Steps to reproduce the behavior:

1. Build and run OvEditor in Debug x64.
2. Import or drag-and-drop a model containing non-triangle polygons (quads/ngons).
3. Place the model in the scene.
4. Observe missing triangles on some mesh parts.

Expected behavior

All model faces should be correctly triangulated and rendered, with no missing geometry.

Screenshots