Hi Aphexx,
I’m not sure I saw the same results you’ve gotten with this.
Here are my steps:
- Placed static mesh in my UE4 Scene
- Mirrored on the Y axis
- Selected my mirrored actor in the scene
- File > Export Selected > Saved FBX
- Imported in 3Ds Max.
For me everything imported the same as it was mirrored. Obviously I’m missing a step that you’ve done that reproduces this.
Let me know and I’ll look into this more.
Tim