https://forums.autodesk.com/t5/fusion-design-validate-document/drawing-files-gone-fusion-360/m-p/5719713#M291676 <P>Hi&nbsp;@Anonymous,</P> <P>I have spent a lot of time evaluating your log files and I believe I have been able to reproduce the problem you are having. &nbsp; It is caused by a bug that will be fixed in our next major update. &nbsp;To fix your problem please do the following:</P> <OL> <LI>Go offline</LI> <LI>Open your file Rear bars and use the Save As.. command in the file dropdown and save it to a new name.</LI> <LI>Open your file JY Fuselage test and delete the Rear bars component.&nbsp;</LI> <LI>Insert the copy of Rear bars (created in step 2)</LI> <LI>Use Save As to save JY Fuselage test to a new name</LI> <LI>Go online and the copies of both Rear bars and JY Fuselage will be uploaded.</LI> <LI>Once they are uploaded successfully, delete the following file&nbsp;C:/Users/John/AppData/Local/Autodesk/Autodesk Fusion 360/8TY3K3LZ6VCJ/W.login/UploadQueuedFileList.xml</LI> </OL> <P>Let me know if that helps fix your issue. &nbsp;We are sorry you encountered this issue and again have a fix coming soon.</P> <P>&nbsp;</P> <P>Thank you,</P> <P>Kris Berg</P> <P>Fusion 360 Development</P> <P>&nbsp;</P> Tue, 14 Jul 2015 20:38:57 GMT kris_berg 2015-07-14T20:38:57Z