How do i get rid of this? not only does this show in the preview, but it also shows when rendered. I have the original video on my pc, and it plays perfectly fine, and i dont see any glitches on the original video. I tried making a new file and dragging the video in the timeline and i still see those pixel blocks.
EDIT: I dont know if this helps, but i have a very strong pc, so i dont think this has anything to do with any hardware issues.