can someone help me? i rescaled a bridge and also the msh file with autodesk (both 0.5)
packed the msh file into an arc file with ARC Encryptor
when i add the msh to the corresponding bridge, it becomes invisible. also the snappoints dissapear.

what i did in autodesk:
loaded original mesh. scaled everything down to 0.5.
exported with following:
Mesh -> Object001
Collision Mesh -> collision mesh
groundmesh -> 1 //cant select 2 there but bridges have 2 ground meshes afaik or maybe it is put together as i can select 2 different ones ..dunno
filename: does not really matter just added "_custom" or "1" to the original name
the rest is left blank.

tried also different variations with texture but there is also no texture file

without msh scaling the bridge does weird stuff on walking over it and snapping to ground (old bigger mesh here)