My site is up and running successfully since last October with no problems.
I have opened my backup to make a couple of changes to re-publish, but on
some of the pages the photos are missing and when I hover over the red
exclaimation mark in the top left corner, the message says "unsupported
picture format"?.
On some pages all the photos are there and some not?.
Can someone please help explain this and how to overcome?.
Many thanks

Graham