Sync failed 404

I had successfully uploaded my app to ionic view and it worked great. I had made a lot of changes, including adding firebase and satellite support to the app, so I deleted the original app and used the same command ionic upload to upload a new version.
The upload was successful but once I try to download files in ionic view, I get the error Sync Failed. Status:404.
I tried clearing the app id and key id to upload a fresh version, but nothing has worked.
It runs fine on the desktop using ionic serve. It runs fine using ionic serve --lab and it runs when tethered to my android device.
What could be causing this?