Missing Track and Road segments - "fix"

I have been plagued with missing segment of roads and tracks. Manually adjusting ground height and various track-side gravel I could fix them but on a large route it is a challenge. I saw a message about shaders causing some odd things when set to max. I have always liked max but could never really visually justify it. The setting seemed harmless anyhow.

But taking the hint in the other message I set shaders to minimum. Now I can't find any road or tracks with missing segments. :udrool:

For your own routes, there's no need to adjust the shaders. All you need to do is replace the textures with non-PBR.

The issue is older textures were converted to PBR textures and caused this issue. One of the main culprits is grey ballast, an ancient one to be exact, and the other is the TS2009 and TS12 textures. N3V is aware of the TS-series textures and is supposed to fix that, but nothing's been done with those yet.