Hi Steven, I think you need to sync your web modeler using the desktop modeler to get it up to date. Try doing that using the "Sync web modeler" button from the desktop modeler Changes dock.
As for your question about revision order: revisions are typically sequential across your whole repository. I believe the web modeler makes revisions in its own development branch, which would fill in those missing gap revision numbers. I've also seen the "Run in Cloud" button in the modeler create 2 revisions at a time. I'm not entirely sure why that is.
When you open up a revision in your desktop modeler, you can go to the team menu and hit the 'sync with web modeler.' This will do a commit and then push that revision to the web modeler. In your case, I suspect it would create a revision 14 then both the desktop and web would be revision 14. That's the best way to ensure you have the right version in both places.
Thanks, that will help!