ever since the hiccup where the hub had to go back a bit, I've experienced trouble posting some images; it goes through the uploading sequence... but that's it - it doesn't leave the page for the post, it doesn't give me any text telling me the image has already been posted , or previously removed

can anyone give me a clue as to what I can try so I can post these images? Its very frustrating

Ah, so you're still having problems with them, huh? Hm...

Could you give me a link to the exact images you're having trouble with (maybe upload them on imgur)? I'll see if I can find the problem, or at least a solution.