I apologize for loading you up with debugging, but I am recuperating and have nothing better to do!
I have been avoiding using any video elements in my presentations for several months now, because they seemed to cause the MacBook to crash. After the release of 2.0 I decided to try adding some video back in. Unfortunately I see no difference in the performance. If I add video elements to the presentation, any section - doesn't seem to matter and includes motion backgrounds, the Proclaim app will crash at some point after going on-air.
I have attached Proclaim logs, and some crash logs, including some from earlier in the month using release 1.35 (I think) and one from today using release 2.0. In today's test I added a number of videos from the verse-of-the-day collection to the pre-service loop. I am currently running Sierra.

5808.December Crash Logs.zip
7433.2016-12-10 Proclaim Logs.zip