Importing mesg over 300 meshes?

Hello developers,

I am trying to import a mesh well over 300 meshes, and I tried splitting the mesh in 2, but this happened,

If anyone has ant suggestions please let me know.

Question: Why does a mere airplane have over 300 meshes within it?

Due to the 10 thousand triangle limit, also interior detail

I apologise about this, however I meant 200, not 300.

Select everything, then check the property: DoubleSided; set that to true. I hope this helps