So I've just purchase movie studio 18 suite, I've started my first project with some GoPro footage all in 4k 30fps, finished editing it and the preview everything looks good. When I got to file drop down menu and try to export in mpeg-4 at 4k the first clip gets rendered fine then rest of video is a green screen. The finish movie button in top right hand corner of program doesn't give me the option for 4k
I don't know if I'm doing something wrong but can't figure this out, the description for this software said it can output 8k