On SolidWorks Connected 2024, everything is ok:

But when I open it on student version (makers has not simulation. I have them on the same computer), the bolt and nuts desappear:

and when I change to the other configuration, the nuts are enlarged:

I restart my lap top, and reinstalled SW (both, connected 2024 and student version 2023) I restore the same previous setting on both of them. On friday, everyting