Others have been reporting various problems similar to this, no photos showing, and parts of descriptions missing, you are not alone!
I will tag our community managers to see if they can shed some light on this, if it is still an issue, eBay are aware, and if there is any news for a fix.
I do not use the app but a laptop and Chrome, if you're still stuck switch to that combo if you can. It's all good there ..... so far !
dave@ebay marco@ebay
kat@ebay
@timcoote
