As per discussions on another topic, thought it was best to start a new topic so it didn't get confusing between the FTV4K and the cube. .14 has pretty much fixed the h264 interlaced issue on the 4K.
It does still crash however it just happened to me a couple of minutes ago when my wife was watching BBC1 HD I have submitted a diagnostic report of you can please see what happened and if it can be fixed.
Thanks