Just tested with the most recent trainer release and the trainer will activate, but the color next to the 'Game Found' text stays yellow, never turning green. Trainer activated sounds off and doesn't seem to crash game playing for several minutes, however none of the options will activate when the hotkeys are pressed.
Posting to confirm I have the same. It looks to me like the trainer is crashing when trying to access the game.
But this was apparently a pretty major update so that is to be expected I guess.