Assembly opens and does not show all components. This may be because the user saved while in an ISOLATE view - how to recover from this.
The quickest way to determine if the assembly was saved in the ISOLATE condition is to access the Part Navigator and expand the Model Views. If you see that the Isolate view is the Work view then this is the case.
Make any other view the Work view and the component display should now be as expected.
NotesFor more information on this issue please see the NX docs at the following link https://docs.sw.siemens.com/en-US/doc/209349590/PL20231101866122454.assemblies/xid1317668