I just updated to the new patch with the marketplace. Went to continue my build project, and I can no longer sort by packs. They simply don't show up. As you can see by my wallpaper swatches, I DO have packs installed. It's not even that the packs I don't own are greyed out like they were in sort prior to this update. The option is simply non-existent except for base game.
Edit: Noticed today this is the same in CAS. No filters. See attachment.