Have the same problem. Also when I tried 2-3 weeks ago. I then chatted with Qlik Support, and they said it was 'a known issue ,but were working on it' . Still not resolved. Must be linked to user profile, because problems persist on Mac and Windows alike.
In same situation - want to pitch it for a use case, and this isn't helping Qlik at all !
Suggest you chat with Support. Will do so again as well.