"Send link" not working in Complete Mode

I went into my complete mode track selection to find that all the icons were just black squares. Okay, not all of them, but all the tracks that had maps from other links. (I do this to save storage, by the way.) So I needed to go in and send files into my Bananan Labyrinth and DK Jungle tracks from MKAGPDX. When I tried to send postimage.org links again, they wouldn't send. As soon as I clicked the send button, nothing would happen. It would just sit there like I didn't click anything. Is this a glitch? Poor internet? What's happening?

Happens to me as well