When using datasmith meshes are broken

When using datasmith meshes are broken, helps to fix optimize in cinema 4d but the geometry of the model is deformed

What is your CAD format you use to import? From which software?
Which version of the engine are you using?

Do I understand that second screenshot is CAD => C4D => UE?

What is your CAD format you use to import? From which software?
Which version of the engine are you using?

Do I understand that second screenshot is CAD => C4D => UE?

I solved the problem, I realized what the problem was. it was the size 100 , I set 1 and enlarged the model in the standard way, datasmith has no remove degenerate function.