Then when I press the retry button it says it uploaded and shows a workshop page. Now I press download from the workshop to use it, but it will never download. I then checked the space on the workshop and it shows 0B so I guess it never even uploaded.
Quick question, are you using SteamPlay on Linux?
I was getting the same errors last night on it which seems to be a bug with SteamPlay’s connection for now, which is probably a Valve thing to sort out.
Otherwise it’s more than likely a steam connectivity issue.
Turns out I needed to be on the steam account that owned the game. I was in my PurpleTeam trying to upload it when I should have been in my BlueTeam account. So I guess Ill fix it by buying a second copy of the game.