I didn't want to report a trainer issue as I believe it is either my system (Laptop) or that I'm doing something wrong. Seems that it works fine for almost everyone.
I just downloaded the game from Steam and our latest trainer, have created the scan exclusions in my security software for the trainer exe file and the Work folder which is located here -> C:\Users\YourWindowsUserName\Cheathappens\
Launched the trainer with admin rights
Launched the game through the Desktop shortcut
When in the game's main menu I pressed F1 to activate the trainer
When in the actual gameplay where I can move around, I pressed each of the option Numpad key one after the other, always waiting for the audio confirmation Activated -> All working as intended
From what you wrote I see one thing: your anti-virus, you should whitelist the trainer's executable (.exe) in your security software(s)
Hope it'll help 🙂
Please use the trainer option request system for requesting new options be added to this trainer and/or vote on options already requested.