Are you logged in to the Creative Cloud on the iMac? Make sure you are using the same account as the MacBook Pro when accessing Rush. You can also take a look at these helpful Troubleshooting Sync Issues pages for additional info.
Yes, I'm logged in to the Creative Cloud with the same ID. The problems is that I can see my projects but no import is available with Creative Cloud Files. In the cloud window, you could see Creative Cloud Files doesn't appears. I've try to disconnect and connect back but it doesn't fix anything. Do you have on other idea ? Thanks