Hi Jim.
These errors might be related to network issues. Check that your network works correctly. If your network is behind a firewall or proxy, please make sure the following are not blocked.
*.autodesk.com
*.cloudfront.net
*.google-analytics.com
*.akamaiedge.net
*.akamaintechnologies.com
*.amazonaws.com
*.edgekey.net
*.googleapis.com
*.msecnd.net
*.microsoft.com
Here is a post describing this in detail. Here another.
Try rendering the Revit sample file and see if that works. If this does not help, contact the rendering support team.
Also, it could be possible that the width or height of the view that you are rendering may be too big or too small. For eample, if you are using crop region in Revit render settings. The current limitation is that the width or height should be in the range of 108-4000 pixels. Try changing it and see if that works. Also check if you have available cloud credits to render.
Let me know if this helped you fix the issue! Also accept is as solution, so more people can easily acess it.
-Didi
