FYI I can replicate with 2 items on the market not just one. 💀
Should have tested that before having CJ send the video lol
Testing results (sorry for stream of thought):
Wasn't able to replicate with Camisole which has a full page + of items
Additional testing shows this bug occurs in any item with less than 1 full page of listings. So Shoulder Sweater (21 listings) shows the bug but not Camisole (100s of listings) or Bloody Apron (more than 1 page but less than 100 listings).
The bug appears to start occuring once the item price is changed to be higher than the price of any other item on the page.
I am able to replicate on Bloody Apron if I start the price below the most expensive listing and then change the price to be more expensive than the highest listing. Starting the listing at a higher price doesn't trigger the bug on items with more than 2 listings, the listing has to be moved to be higher price than the last listing.