Random pixelated bars when using oculus link
I bought an Oculus Quest 2 about 6 months ago and it has been working fine either standalone or using oculus link (I use a Kiwi Cable for this). I stopped playing it for a little while but for the last 2 weeks or so, randomly a pixelated bar will sometimes show at the top and bottom of the screen, they look really low resolution but the centre of the screen is always perfectly clear. The monitor that mirrors the gameplay has no issues either. Most of the time they go away after a few minutes, but there has been one occasion where the bars seemed to 'grow' over the entire screen and couldn't see until I completely restart the Quest 2. This only happens when using link, not had any issues with standalone games.
Has anyone else had this issue or know how to fix it?