Thanks for posting the log files.
Can you help to clarify the steps you are using to reproduce the issue?
- Are you working offline when this issue happens?
- What type of file are you exporting?
- Is it a design with X-Refs or a drawing? What file format
- Are you using the Export command from the File menu?
- Did you sign into Fusion 360 without going online at the customer site?

In your log files, I'm noting lots of network connection issues.
20161209T151316 E 1481276596104 1481276596109 GET https://a360-statusdashboard.s3.amazonaws.com/autodesk_maintenance.json?AWSAccessKeyId=AKIAI3QZAKZMA... 6 Could not resolve host: a360-statusdashboard.s3.amazonaws.com
20161209T102534 I XHR Fail: GET https://pstatic.autodesk360.com/static/9A-2016.r3/communities/images/default_group.png?oauth_consume... Code :6 Error: Not Found [404] Response:[object ArrayBuffer]
20161209T173342 E 1481285021672 1481285021676 GET https://ui-dls360.autodesk.com/fusion/version.txt 6 Could not resolve host: ui-dls360.autodesk.com
I'm wondering if the certificate issue in this thread may be a related issue.
There is a list of domains and ports that Fusion 360 requires to be open in order to operate normally.
I hope this helps and I look forward to your reply. Please let me know if you have any questions.
Thanks,
Nathan Chandler
Principal Specialist