Finding a lot of products hidden

[MasterpieceCafe]

but they do not show up when I sort by "hidden" or "needing optimization."

there doesn't seem to be a reason for these products being hidden. and no way to sort to find them.

[DesertSky]

I have the same situation. I have products in the back-end management area that look as though they're public and visible (no hidden or optimize icon), yet they're not visible to anyone in public. I know this because I have some really old small stores (now hidden) and it's easy to tell which products are visible and which aren't. I believe it has to do with the fact that any product made with Quick Create (when it was allowed and even sanctioned by Zazzle) are being hidden if the product hasn't been purchased in the last 15 months. I believe it doesn't even matter if they have sold in the past, if a QC product hasn't been purchased in 15 months, it isn't visible to the public. What makes it even worse is, as you said, you can't even tell from the management area which ones are public and which ones aren't, there is no indicator for the shop owner. There was a thread about this, I believe it was earlier this year. It happened when an option to sort by Quick Create products was added to the management area, but it was never officially announced. It's really unfortunate for those of us who have been around for many years and used QC with Zazzle's approval. So many products have just vanished from view with no way to tell what is visible and what isn't. I'm just assuming that any product made with QC is gone from view. It's like starting all over again as a newbie at Zazzle. I know you've been around for years too, but not sure if you used QC, so that may not be your problem, just guessing. I hope you can figure out the issue, just thought I'd mention this in case it's the reason. 

[MasterpieceCafe]

The ones I'm finding have the "hidden" icon, but do not show up when I sort by hidden. They are also products that have been viewed in the past 15 months. So it's very weird.

I used QC for almost everything for years. Disappointing to be downgraded for something we were encouraged to use.