I uploaded some rug recolours yesterday and when I got to images the second box asked for a bedding picture.
"Bedding Screenshots - An image showing the bed as a single bed and connected."
It also said OPTIONAL above the box but 1 image required below.

Since I was uploading rugs and not bedding I simply placed another rug picture in this box but thought you might want to know.

Also, I ticked AL as being required for my upload but all packs are showing up under Expansion/Stuff packs required on my upload.

If a slot is marked as OPTIONAL then you don't have to put an image in the box. Thanks for letting us know about the extra image though! I'll check into the AL issue.