Custom Game Map Downloads Not Working

I and some others that are trying to test things on the PTR are unable to download the maps that each other are hosting. The map download progress bar stays at 0% and then disappears, and then the game tries to join the lobby but none of the map info actually loads, and we get kicked from the lobby about 2s later. I noticed that this bug had also happened to me in the live client but I figured it was just a one-off. Seems it’s not just a one-off though :frowning: