There's a bug that if you get 3 wood during tutorial while it tells you to get 3 rock, then get 3 rocks, then the tutorial remains stuck telling you to get 3 wood and the worker never chops the trees lol. Just says: "Collect 3 wood" but it doesn't work anymore
The biggest bug problem is when there are multiple rail repairment needed at the same spot. Because instead of fixing them all, the worker just spends the resources and nothing happnes. It's like his timer resets after he detects a new fixable road but the resources are already spent. So you are basically screwed no matter what because those buffaloes will keep destroying multiple at once. Plus sometimes you just don't notice a broken rail, a simple arrow animation could make it easier to spot when you're distracted.
Heh, now I'm so experienced with the old Hardcore mode, that this updated version felt too easy for me lol. At a point where I have so many workers and resources, I have nothing to do, since I have 3 star salone, 5 super fast workers, in which 2 or 3 would've been enough honestly. The bounty hunter is also easy to avoid if you just stay behind the rock and wait for the train to come to kill him. Don't know if it's intended or not. The buffalos are always coming at the same time so you know when to prepare. So everything seems predictable and easily avoidable by doing the same things basically, makes it a bit repetitive. Perhaps more features are now neccessary. Maybe the challange could be that the train keeps speeding up and instead of it being an upgrade in the Salone, it would be the hearts of the train you would upgrade. Don't know if that would be fun or fair, but just an idea. Or the rail track changes the path and so on. But that's up to you of course