I'm not sure if this has been logged, but it's happening at Preson too - essentially if you're looking at the station glass roof through another peice of glass like the awning there's flickering. I'm guessing it's a texture conflict but it's noticeable in it's flickering. I've seen it some videos on YouTube too, so it's not an isolated thing. I've uploaded a pic of the glass at Carlisle but it's difficult to capture in a static image. Also a pic of the sign at Bare Lane. Also not as important but at Bare lane one of the station name signs is mounted on the back of the light pole and not the front.
The cause isn't actually that, with the glass it seems to be when you look through two glass materials at the same time (train glass is separate from the scenery glass so doesn't have the issue) that it causes flickering. Am unsure if it's an unreal issue or what but have noticed it in more than just our routes.
I used to dabble in content creation on SecondLife back in the day and distinctly recall there being a conflict if transparent textures were used. They'd basically fight it out over which one was displayed above the other, especially if they were the same texture. Not sure if that's the issue here, I could be talking nonsense.
I would lean toward an unreal engine, unless the two glass materials are being seen as similar in some way.
