There is one scenario I am trying to upload which still won't, I have tried with another scenario to see if it was a problem with just the individual scenario or Steam Workshop as a whole and the other one worked. I have checked to see if the issue is 3rd party content but it can't be because it says Ready to Publish. Yet I still get the Failed to Publish File message. I have changed the scenario screenshot, and made sure it is the correct file size but that doesn't do anything.