Hey - so, I've watched both videos.... Regarding video #1: I suspect the problem here is that some of the items in your media bank aren't able to be located. Can you try loading all 5 of them (from left to right) and make sure that they are all able to be loaded and played (you can just drag them from the media bank onto one of the video previews of MixEmergency to load them - and you don't need Scratch Live open to try this). Regarding video #2: Can you try disabling the upfaders for your mixer in MixEmergency and see if this has any effect on the issue? To do this you need to go into MixEmergency's preferences, then to the Transition panel, then make sure that "Use External Controller Upfaders" is disabled.