On all Train Simulator routes I've tested (Weardale and Teesdale, Washington-Baltimore, Clinchfield, Albula), distant terrain fades extremely aggressively, causing ground textures to lose colour and appear bright/light green at relatively short distances. It is still present even with high scenery settings (density and quality). I tested the 64 bit, and 64 bit Dx12 versions, both of which have the issue. Dynamic lighting and clouds appear to mask the colouring issue, but it tanks my FPS. With it off, the terrain problems are clearly visible once again. Verifying the files on steam does nothing, and this hasn't happened before, making me believe this is a regression caused by recent TS classic updates. Though I'm open to any possible fixes if any exist.
Are you using an AMD card, or some "nonstandard" driver-proxy? Having black distant terrain is relatively known issue, I haven't seen bright green, though. Given that said black terrain is definitely specific to tiles and possibly even weather, I'm sure it's kind of a content / config error and your default might be green. I suspect it's an overlay colour on my end, but don't exactly know. As you can see on higher shots the mid-distance overlay ends and then you see the appropriate far-distance overlay in the, well, far distance. In my case, the oldest routes aren't affected, however those around 2014 are widely so. Yes: München-Garmisch, West Highland Line Extension, Pacific Surfliner, Donner Pass Not: Köln-Koblenz, Hagen-Siegen, East Coast Mainline (Newcastle-York)
What you are seeing is normal. You are viewing from a certain height. Route developers only put scenery at a certain distance either side of the track. In an overhead view, you can see where the scenery stops.
Trev, I would argue against it: I have deleted my "proof tiles" because I don't expect these to be fixed. Whether the green is the same issue under the hood, I don't know, but it's suspicious. As for healthy tiles...
