Blame the stupid way Unity works. It compiles code when things are done in the game, and apparently compiles code differently on different machines.
I needed to launch the game from the executable as admin, then it worked for me too.
When I press F1 it states it failed and gave some script error code so the trainer does not work at all
Just a question if you have installed Net Code the new update, and if you have tried any trainers in other games that have been recently updated and if they work properly.