Please use link attached (see screenshot) as example.
The thumbnails are loading and then they disappear. Only doing this on mobile devices and tablets.
Is anyone able to help with this?
I wonder if it can be related to either timthumb or fancybox. Maybe fancybox, since while loading the thumbs are showing, and when it's finished they disappear, leaving only a black border box.
Well then maybe timthumb, the last image on your page is ok, and not generated by timthumb, while the gallery is. I don't know if your theme has an easy way to switch off timthumb, or switch to the default WP thumbnail system.
If we gave you access, is this something you might be able to know how to fix?
We can put the Reward up if needs.
I could at least see if you can disable timthumb from the admin in your theme. But if it's hardcoded in the theme files, it'll need a specific intervention.
Thank you for having a look.