We've been having some problems lately with one users local file randomly giving her the error that her file has become incompatible due to the same object being edited in both files. There are 3 of us working on the project right now, all with our own local files saved on our workstations. This happened yesterday too, but since there weren't any major changes made since it last saved successfully, we just created a new central file and made new locals from there. This time there were more changes by both users so we would be losing some work by throwing away the local.
Has anyone had this kind of thing happen? I thought revit wouldn't even allow 2 users to edit the same element, so i'm confused as to why this is happening at all. We are using 2008 and nobody has been working in the central file other than to create locals.