I try to do a wishlist search while in a user shop, right? Ok, every other shop is working, but this one where I most want to...This is uber weird, why only this one shop? And I've been to bigger shops, with lots more items/pages and they work.

The WL shop search won't work if the operation times out. That is, if the site takes too long to search through everything in the shop. So a smaller shop would be more likely to work for a WL search.

I dk if it's the total number of items that affects the shop search, or if it's the number of different items. I dk if it searches through each item separately even if it is a duplicate of another item, or if multiples are ignored. A shop may have 15,000 different items and 15,000 items total while another shop has 5,000 different items, but a total of 30,000 items when duplicates/multiples are included. If it's determined by the total number of items and not the number of different items, you would get a situation when the shop with that has 10,000 fewer types of items actually takes much longer to search than the shop that has more different items, but fewer items total. So the shop with fewer pages of items could actually take longer to search through because it has more items in total (because of duplicates/multiples) than a shop that appears to be bigger. I dk if that's what's really going on, but it's my best guess.

Oh...ghhjjkksss...complicated @ :D but thanks for the patience to explain it to me :)