Cinemachine weird lines of color when moving?

I installed Cinemachine to have a camera move with my player in a 2d platformer I’m making, but now for some reason when my camera is a specific Y-positions, these strange lines of color appear in the game view, on what appears to be tile chunk borders.

Is there a way to fix this aside from making the camera snap to a Y-position(s)? I'd like to avoid this solution because I want to be able to A: have a smoothly-moving camera, and B: make a game with some more vertical levels.


update: well, it’s gone now. I literally don’t know what fixed it, it’s just gone.