First off, the new interface looks amazing! Great job.
It seems like I can't create labels that stick within the new interface. I tried with several movies and create a label, back out, refresh the page, look again and the label isn't there anymore.
However, if I switch to the legacy interface, create a label for any movie (I am creating my October Movies collection with the smart tags) they do stick and are available to select once I go back into the new V2 interface. I just can't seem to create new ones from the V2 interface.












