Neil is very knowledgeable, but I think the explanation above is not correct. When a proxy is correctly made, you essentially (in the PP monitors) can not tell it apart from the actual footage. IE: When the PROXY DIMENSIONS are correct, there are no bars on the side of the video. Here's a very recent thread where the OP couldn't tell if he was using proxies or not (ie: no bars) how to tell if proxies are present and connected You said you were editing 4K, usually it's one of these two 4,096 by 2,160, 3,840 by 2,160 4096 = 1.9:1 (aspect ratio) 3840 = 1.78:1 So a 1024x540 default proxy will work with the 4096 footage, but if you use that with 3840 footage you image when viewing proxies will be squished in and have bars on the side. Just from viewing the 1 frame of your guy in the grey hoodie, obviously it has the bars, but it also appears a bit squished in to me. Best Proxy Size: 4096 = divided by 4 = 1024x540 3840 = divided by 3 = 1280x720 I don't know what the problem could be on your system. I would suggest checking the paths of everything, via File Explorer and the paths PP is using. You might want to have a quick look at the 'scale' property of the items in your project that are appearing incorrectly, just to insure they are at 100% and not causing any problems. If that doesn't lead you to anything, how about recreating the proxies and putting them in place again. Of course from the beginning of this, you hopefully saved a copy of the original project file under a different name but in the same folder as to original/current project, before you tried doing all these things. Recreate the proxies and try attaching them. If that would work, you might consider a different proxy size, ie: w/out the bars.
... View more