Unable to Add Motion Graphics from Pr to Rush

Hi there, 

I am no longer able to import MOGRTs into Rush. I have tried existing ones that I had created as well (but hadn't moved into Rush) as making a new one today to see if that worked. There's a number of UI changes here, and perhaps I'm missing something about how this needs to be imported now. The ones I had already saved are still there, but I'm not able to add new ones anymore. 

Thank you for your insights.