Problem with assembly registration in STEP

Hello everyone.

I don't understand when I save my assembly in step (at the request of a customer), when I open the step file in SolidWorks the parts are assembled and positioned in any way.

Do you know why? And what to do?
I tried to redo the assembly etc. nothing changes...

Thank you in advance for your help

Surprisingly, I have never encountered this problem.
Are the pieces completely constrained (none (-) in front of the name)?
Are there equations?

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Yes the part is constrained with basic constraints, no equation.
I don't understand either :confused:


Hello;

Is it the same thing regardless of the type of recording in Step? (AP203 / AP214)
What if you open your assembly (the STEP) with Edrawing?
Does it do the same if you record it in parasolid?

See also the export options:
image

Kind regards.

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