As a result of an update in component technologies, the body names in imported CAD packages via Reader mode can be different between release 2025 R1 and previous releases. (1139902)

Importing a STEP file (*.stp or *.step) into Mechanical 2025 R1 requires the rdpara licensing increment. Workaround: Use Mechanical 2024 R2 to import the STEP file or use a Mechanical 2025 R1 license that includes the rdpara license feature. (1207849)