I just tried posting a photo from my Samsung Galaxy S8, and like Brad . . . Couldn't. Allowed me to select a photo, then when I tried to post it, got "Oops, something went wrong". So, Brad . . . It's not just you.
Just tried to upload some photos / attachments and ran into some issues myself depending on the size of the file.
So I made some setting changes on the server tried a few larger files and they are now working.
Just note that if you use the attach files button instead of the image icon, it will ask you to insert a thumbnail or full image before you can post.
You can see below a photo that was take with my phone and posted from my phone.
Tom if you could please provide some kind of a tutorial on how to post photos .... i have many i would like to share but i do not know how other than individually emailing or sending them on the I phone to someone .....if i could do it directly onto the site that would be great ?....do they have to be uploaded somewhere else or what ? or how do i do that ?