I am getting a black screen during playback after updating. The audio still plays fine. If I swich from CUDA to software only, I can see images again, but my entire timeline render bar turns red, and it's impossible to playback smoothly. In the past when I have rendered in to out too many times then tried to edit further I was having a strange issue with clips imprinting themselves on other clips, and I was forced to clear all my cache, video preview files, and preferences etc. I don't want to have that issue again. Is there a different fix for this? An older version of PP (13.1.5) doesn't seem to have this issue, but it's also an old save for me, and I have made too many changes to go back to editing from that point. . .