I have been having this problem for a while having to change the way I import images to get them in until today when I could do nothing, not import, not drag, not cut and paste, not bitmap as suggested above, nor changing "location of image".
So I converted the file to a .pdf and imported fine no problem.
I have Vectorworks 2023 and a MacBook Pro running off Ventura 13.4.1 .
While I have solved this problem for now any advice would be gratefully received!