Hidden Objects are not selected for STEP Export
SolutionOpen the ugsetp214.def file and set the PROCESS_HIDDEN_OBJECTS option to 'Yes'. It's set to 'No' by default.
In an out-of-the-box installation of NX, the ugstep214.def file can be found in the following directory:
%UGII_BASE_DIR%\STEP214UG
Locate the file and open with a text editor.