Ok, easy fix to part of this problem: I was using the wrong thing for my Flickr ID, the first part of my yahoo email address (before the @) instead of the proper ID, which can be gotten from the http://idgettr.com/ – which was right there in the settings! I’m still getting the “invalid argument” warning on the Edit Galleries tab, though. No idea what it means or affects.
I am having the same exact problem. Random crap from Justin Timberlake or Drake or whoever.
What was the solution to getting an audio-only file to display properly in iOS? I am having the same problem, where an mp3 file with a height of 24 displays properly on a desktop, but on an iPhone it is too large, like a video – just as you said.