It is not a bug. Alpha blending was exchanged by "alpha to coverage" intentionally. They just broke what was working in the name of avoiding bad performance. They didn't offer spare satisfactory solution at the same time. They just cut it off. As they did with the highest resolution for example. They just cancelled it. In the name of avoiding bad performance. Users complained about bad engine core performance so they created special solution. A revenge for those screaming about performance. Instead of applying clear rules for content creators and strict restrictions for placing content into the game. Instead of providing clear and full instructions and manuals how to create the content to be valid and not hitting performance. Were they just lazy or not so self-confident or what made them to do so? I can't believe it was only cost related. It would be just extremely short-sighted then.... Currently Trainz iz not suitable for playing at night at all. Unless someone would like to suffer the poor visual experience.