I’m traveling at the moment and won’t be able to do a zoom call. Limited internet connection.
But as you can see in the 3.3.4 thread a lot of people are have the exact same issue with the preview bug 
As for the update problem. I think I figured it out. Its the stored presets that are causing the videos not load. If there’s a default preset enabled in config and set to automatically start. After disabling it the videos did load onto the screen…
Hope you can fix this is the next release…
