This is insane honestly, I fly the 4ya servers and myself and many other players have been reporting this daily, all in different areas but mostly over airfields, until a fix is found can the texture that causes this be removed from the game somehow?? It's making it quite hard to enjoy the immersion.
Here is video of me flying through it,
Unfortunately I don't have any "short" track files, this usually happens after at least 15 mins of being in the server