Just to confirm, you are editing the video in Photoshop not Premiere?
Does this happen with any other video clips?
Sorry for the confusion, this is in Premiere Pro 15.2 and happens as soon as I import them.
Sorry - I did not see your earlier reply.
Thanks for confirming it is in Premiere. I have move dteh discussion to that forum.
Can you confirm the following:
Here's a page on on what could be a similar issue.
It suggests updating the driver and if it does not work, try:
File > Project Settings > General > Video Rendering and Playback > Mercury Playback Engine Software Only