Container field video player - autoplay not working

[VirtualBob 0]

I'm testing the interactive content container and am finding that the video autoplay is unreliable (in my trials at least). I've checked 'Start playback automatically' in inspector but its hit and miss whether it works or not, but mostly not. Any ideas? Is there also a keyboard shortcut to run a video as spacebar doesn't work? I'm using FMPro 15.