Recently updated to Inventor2013 Build 200 SP2 (64bit) hoping to correct the issue to no avail....Please see attached .pdf file of errors that we keep getting. I need help trying to figure out why we keep receiving these errors. Usually correspond with each other. When generating files we get the updated outside the current session notification first. Select no for each IPart. Then IParts do not update so we try generating the files again and then get the message about files cannot be found. Selecting retry has no effect cancelling causes the severity error notification to appear. The only way that it seems to work is by exiting Inventor then restarting. Then you can work on file but then it comes back. Cannot say exactly how it occurs or which commands make it occur because it happens randomly and occurs within different .ipt files.
Quick thought, any chance your master project file got switched on you?
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Data/files stored on network of local machine?
Check Task Manager and see if there are more than one instance of Inventor running.
Cadmanto.......Master project file is still set to the proper project file.
blair.....data/files are locally stored. Each user has their own working directory.
Lancasterm........We are using Vault. Upgraded to 2013 at end of last year. When migration occured vault had sp1 installed.