Incorrect simmetry in 3d obj

[jredrejo]

Hi,
creating an UDC I'm using a 3DModel basic shape.
I'm using a 3D object in blender that I'm exporting as a Wavefront obj. This obj and its associated mtl file is the model I'm inserting in the 3DModel shape.

However, no matter how I try it, the imported object in MachinesSimulator has always a simmetry applied. I'm attaching here screenshots of the top view for blender:
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and for MS:
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 (and the options I'm using in Blender to export it).
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What can I do to avoid this, or is there a workaround to solve it?

Thanks in advance
José L.

[EasyPLC_Master]

Probably in Blender you have some rotation applied. Before exporting to obj, reset all transforms so will be not applied.
Please take note, if the simulation of this device must move parts independently, you should export each of those parts separately to be able to give movement or the desired behavior.

[jredrejo]

I have reset all the transform without success. If I import it with https://www.opencascade.com/products/cad-assistant/ the simmetry does not appear. It only appears when I import it in MS.
I have found a workaround applying the simmetry in blender, so the export/import process restore it to its correct situation.

José