You may have noticed ebay urls are a bit forum unfriendly and they don’t generate a preview.
You can tidy up links from ebay by just copy/pasting the url up to and including the item number and ignoring everything from the ?xxxxxxxxxxx onwards. e.g.
https://www.ebay.co.uk/itm/316184764496
Good to know! 
That goes for most links, 99% of the time anything after the “?” is tracking crapola.
Are those the same as Wayne’s?
It one of the links Hoops just posted in the ebay thread, mate.
The url query string does my nut in.
?everdecreasingwankerswantmoney=true
Breaking link previews was how Twitler Jnr started out, so it is only a matter of time before every auction listing needs a “Roman salute”.