I am having the same issue, yesterday when I had downloaded the trainer everything was working smooth for the expection of the coal and natural gas hack, but today only hacks working are "F1 - Activate Trainer" and "F2 - Happiness Hack". If I press, for eg, "F3 - 100M $" It will crash my game immidiatly. I am trying this both on sandbox and on campaign. I do not understand, it crashes regardless... though yesterday it was working fine :-/
Sorry for bumping a thread but I did not want to create another one when there's already a thread for this topic.
EDIT: The trainer seems to work fine during Colonial era. But any era after that is just pure crash..