Hi ! I did an audio spectrum and when I render it, the video gets "bugs" and glitches ! I can see the glitches in RAM previw! this only happens when I replace the audio and the wallpaper ! thanks !!! ask for more informations !
Without things like system info, render settings or details about your comp nobody can tell you much. It would also be useful to have screenshots or the final video to understand the nature of the "glitches".