We are aware that a number of our products have photos which are showing as the thumbnail on the category page, but not on the individual item itself. This is an Etsy issue, and nothing we can do about it. For whatever reason, probably mostly to get more money out of us that use Pattern for our websites, Etsy doesn't exactly connect up photos on Pattern only listings with the listing on Pattern. It only shows up in the thumbnails AND on the Pattern website if, and only if, we also pay to list the item on Etsy as well.
As many of my scented products are not made by me, and are thus not acceptable on Etsy, this is just something I have to live with until the shop grows enough to allow me to move to a different host on a permanent basis.
Truthfully, if I could figure out one of the open code webstores better, and had a way to connect a decent payment processor OTHER than stupid PayPal (which I hate, long story there), I'd do that. It would certainly be cheaper, but the store doesn't have the clout for it just yet.
So in the meantime, I, and you, my wonderful customers, have to deal with the stupidity of lack of photos, until I either can move to a better website host than Etsy's Pattern, or I finagle a way to get everything onto Etsy as well, and pay out the nose for all their fees.
Thanks for your patience with all of this!