I can’t upload anything to usegalaxy.org either by upload or transfer
Hi @Jon_Colman
Are you still having a problem? Or were you able to get this working?
You can share more about how you are loading data (URL, local file browsing, one of the other methods), and to which server (the URL at the top), and maybe share the datatype as well since that might matter.
In general, it is best to let Galaxy detect the datatype. And if the connection is interrupted, you can resume.
For batches of data there is also a command-line tool.
I think people had trouble helping, so be sure to include the server URL next time and others will be able to help to confirm any problems and get it reported to those administrators quicker.
Thanks, and if resolved, please let us know! 
Everything seems to be working again, thanks!