This has been going on for over a year - it's not a bug. They take down listings if they find the images elsewhere. The program is working as designed.
Here is how to proceed:
First, search to see if your images are being used anywhere else. This Chrome extension searches through multiple search engines: https://chromewebstore.google.com/detail/search-by-image/cnojnbdhbhnkbcieeekonklommdnndci?hl=en-US&u...
if you find them elsewhere, file DMCA takedowns and save a copy.
Next, before appealing the removals, collect all evidence that the items comply with Etsy policy. That includes videos of you making them, the original photos taken by you, evidence of supply purchases, evidence of filing DMCA takedowns etc. If you sell the same items elsewhere, provide proof that is actually you.
You may be able to appeal on this page: https://www.etsy.com/appeals
If not, open a ticket and succinctly explain why the listings are allowed under Etsy policy. Attach the relevant evidence. Be polite and as brief as possible.
If your appeal fails, go public with the evidence to shame Etsy. Social media works; tag Etsy if possible. Be professional about it, though.
Source: I've been helping people appeal these takedowns for over a year now, with decent success.
[I'm currently going through this myself today for the first time, and my listing has been here for over a decade. Fortunately I still have the original unretouched photos, over a decade of supply orders etc. Just need to make the video]
