InDesign Printing Issue: Multiple Resource Downloads and Individual Job Listings

I am trying to print a 40 page magazine, A3 folding to A4, which I do bi-monthly, and for some reason InDesign now downloads the resources (images) for each page the amount of times I decide trhe numbr of copies I wish to print.  For instance, if I choose the 250 copies I normally print, it will download the resources 250 x 20 times instead of only once.  Also, when I go to the printer, the job will not be downloaded until the resources have finished downloading (if the program hasn't crashed that is). and when it does, each 20 sheet job is listed individually not as a bulk run.  In the past, I would see a run where the copies would decrease from the 250 mark as the print progressed.  What has changed in InDesign since December '23?

<Title renamed by moderator>