Sorry. I meant that usually if it stalls (and you see on the upper right screen that it adds the item to cart) and you keep trying to checkout. It usually goes through, from my experience. However if it’s like a few minutes after the item initially dropped, it may already be truly out of stock. But I do realize that sometimes out of stock items return to being purchasable, but only if the original buyer had an issue with payment or bought past the limit.
This happened to me when I checked out a rodeo Pegase pm in all black (hence learned there is a 6 month wait prior to buying another all black piece) so another buyer would be able to purchase it despite the site saying out of stock.
How long of a stall is too long before trying to checkout again? I waited maybe 30 seconds (felt like an eternity!) and started over but by then I wasn’t able to get beyond the terms & conditions. Now I wish I had waited longer.