Stats for my sales are incorrect

[WillowAndRoxas]

I'm trying to look at which products I have sold the least on my Stats page. When on the Stats page, I select "All Time", and at the bottom of the page I've filtered "Active Listings" and have them sorted from fewest to most orders sold. Some of the listings stats seem correct with the amount sold, but others are marked as 0 orders and $0 revenue (favorites and views seem unaffected) even tho I have definitely sold that listing multiple times. Am I missing something or is this a bug? 

[BootifulLabels]

It is possible that at some point you have deactivated some listings in order to edit them and give them a fresh look, but instead of editing, you have accidentally copied the original and created a whole new listing instead.  I have done that before (more than once, lol)  and the new ones start their stats again from zero.  

[WillowAndRoxas]

I'm sure that's happened to me a few times too, but this is happening to newer listings as well. If I select "this year" on the Stats and do the same as above, a listing I that haven't deactivated or edited since creating it in February is shown as ordered 0 times. But when I search on "orders & shipping", multiple orders of the listing show up.

[MoonlightMerchDesign]

My stats have never been very accurate, if at all. I thought it was just favorites--I dont know about views and visits, but they have never seemed very accurate. And then I was like, I guess people could have unfavorited them right away, or later? But then I noticed it misses obvious and recent sales, and yea, products/listings that have sold, are listed as zero. I wasnt even doing all time. And it doesnt even get the order number right. Not helpful at all for trying to gauge popularity/profit.