Hi @Anonymous,
Welcome to the Fusion 360 Community!
Just to check does it seem like you have a brand new account within Fusion. For instance - even though you lost all of your self-created data, are there still two default projects there (should be like James First Project and Demo Project)? If so I am curious to see if perhaps you are signing in with the wrong account, or something happened to the hub. Can you please select your name in the top-right corner of Fusion 360 and sign out then back in again. Does the data repopulate? If not, please restart your computer and then restart Fusion. If it is still not there, can you please send me your diagnostic log files from the Help menu within Fusion. Then feel free to email them to me at james.youmatz@autodesk.com.
One last check - can you please visit myhub.autodesk360.com and sign in. Realistically, Fusion 360 should reflect exactly what is sees on this website on the data panel. This check should help us nail down where the issue is occurring. We want to check to see if Fusion IS reporting the same thing as A360 (regardless if all the data is there or not).
Thanks,
James Youmatz
Product Insights Specialist for Fusion 360, Simulation, Generative Design