Bugs: Media Replacement not sizing properly & render replace error Media replacement finally works in Pr Beta; however, there are a couple of major issues Adobe needs to seriously fix before this feature ever goes in the Public version of Premiere Pro.First, using "render and replace" on a mogrt file that has media replace, just doesnt work at all, you get a ton of errors.So Adobe provided a .mogrt file called "Miami Moon" that Adobe made that's supposed to highlight the amazing features of Media Replacement.However, their own file highlights various major flaws. As you can see below, Adobe's own file shows the background image is a dimension of 7360x4912. The problem is that when you replace the background image using media replace, it doesn't scale to fit. So if you add a 1920x1080 image, it becomes super cropped:But perhaps the biggest problem is that it SIGNIFICANTLY slows down your computer because it's trying to playback a sequence that's nearly 8K in resolution, and upscaling an HD image to 8K. As you can see, playback is very choppy