So basically i'm making an amv i guess you could say, and in the project a lot of the clips i'm using have random parts where at the end of the scene it flashes a blue screen for just a couple of key frames, sometimes after i add an effect like shake onto the clip it also shows the blue screen. At first I thought it was just a PC problem I was having with Sony Vegas bc my laptop i'm using is shit, but when I rendered it and played the video, it still had the blue screen. Whenever i look it up all i get is videos and forums about actual "blue screens" as in green screen shit. Btw the clips I used didn't have the blue screen, it was when I put them into the amv is when they got the blue screen. My project is in 60 fps and the clips i used were 29 fps but i used velocity and the Twixtor plug-in to make it look nice (I don't know if that information helps but there you go..
buy vegas would be my advice