Crash passthrough

Hi everyone,
I'm facing a frustrating issue with passthrough on my Quest 3 (Horizon OS v72), and I'd appreciate any help. Originally, everything worked fine through Oculus Link (PCVR setup), but at some point, it completely broke, and now passthrough just shows a dark screen with vertical lines—like static interference on an old TV— instead of the real room. Followed the official Meta passthrough tutorial https://developers.meta.com/horizon/documentation/unity/unity-passthrough-tutorial  sphere is visible, but the room is not, only darkness with lines.