Can't buy engines, can't read messages - i am on mobile - usa express era2 day 1 (started today)
Can you elaborate on this? What happens if you try to buy a train?
What device are you on?
This seems to be related to a bug we had before on browser. The train buy screen should open again once you have researched the Bat.
We are on it to fix the bug, thanks for letting us know.