Is anyone else having issues attaching images to messages?
Yes, I'm having the same problem. It happened to me yesterday and I couldn't send messages either but after a few minutes it seemed to have sorted itself out. I've just gone to upload a digital file to an order and it won't let me do that either.
I hope it gets sorted out soon.
I've forgotten to downsize large photos (in terms of file size) and that makes the message hang.