Atem extreme iso compression noise, one column of pixels

I’ve recently noticed an issue in my recordings, especially with PowerPoint slides or camera video with solid color in the background, that I’m consistently getting a discreet column of pixels on the left edge of the frame that are blocks of digital pixel or compression noise. It’s always in the same place, and from multiple sources, mainly slides. Any way to ameliorate this would be appreciated. My quick fix has been resizing my frame in Premiere to 101% which has cut the edge out but I don’t want to have to do that.

In the pictures I opened up the exposure to see it more clearly, it looks small in the stills but it's quite obvious when watching the video.

Screenshot 2024-06-05 at 10.12.00 AM.jpg (125.88 KiB) Viewed 559 times

Screenshot 2024-06-05 at 10.12.10 AM.jpg (147.36 KiB) Viewed 559 times

Thanks!

Any ideas about this? I'm still getting this issue and have no idea what's going on.