Strange line in the middle of the screen

[N316TS]

Hi there,
This is a problem that goes way back. I have it, too.
As @CasualClick mentioned, there is an existing bug for this, and I moved your post into it. You may wish to vote it up. Your post is here:

Horizon line visible through mountains and objects

When I fly, mostly when the sun is brightly shining, I see a strange horizontal line in the middle of the screen. Does anyone know what this could be? I have a RTX2060, most settings on high or ultra. [Line msfs2020]