So I'm not quite sure what causes this but after I render a certain amount of frames, the Render button in the Corona VFB is grayed out, so I am not able to render unless I restart Cinema. Either that or rendering through the Picture Viewer works as well. I'll need to do some more tests to see exactly when the Render button becomes unusable.
This is with the newest version of Cinema, latest daily build of Corona, using the latest version of MacOS.