Hi Michael,
rhinov4_test.stp, just comes in as one part file with the three parts no assembly tree at all.
viacad_test.stp, behaves as MoI does.
I've attached a STEP file exported from NX6 which behaves as expected, maybe this file will give you a clue.
NX_test.stp result.
NX files the parts accordingly:
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~Danny~ |