Hello, first of all I would like to thank MR for producing this excellent game and I hope it is useful for me to show these slight gltches.
As has already been reported, there is a glitch with AI buses getting stuck. If this is any use to MR, it happens when a second AI bus loads behind another at a bus stop. The passengers walk forward to the bus stop as if they are ready to board, but will not walk down to where the second bus has stopped, so it continues to wait there endlessly. Here is a screenshot showing the problem:
Secondly, I have noticed a minor error with AI NG272's where for some reason the back axle is always about a foot off the ground: