I am using Project Server 2010 and have more than 30 projects that are regularly being edited.
I have a problem with one file in that the version on PWA is different to the one that is opened by MS Project. It happens on different computers so is not a cache issue. The version on PWA has 430 rows and when I open it in MS Project (File - Open - double click on "Retrieve the list of all projects from Project Server - click on file) it shows a file with only 392 rows.
The latest version is on PWA and when I can edit and publish it successfully. The trouble is that I can't see my changes in MS Project.