SQL Developer Data Modeler

Hi everyone!

I have a strange problem. I create a new project, then I commited (revision 1) to SVN like this video --> http://youtu.be/tKCHJBhZIpk (Oracle Learning)
Now I make some changes (new diagrams) and I commit (revision 2)

After that, I close the project and I make a Check Out to another folder from revision 1. If I make an SVN Update to revision 2 I see from the log that everything goes OK but the project doesn't refresh. I can't see the changes on diagrams.
I tried to close the Data Modeler and reopen the project but It doesn't work. I also try to make an update again but the project is already in revision 2.

Any suggestion? Thank you in advance!