Have you run the game at least once legitimately, may need to be verified on first time run like previous titles with EAC.
Thanks, this is what fixed it, I re-verified everything, did the process again and now the trainer activates!
[Edited by Stranger, 2/23/2018 2:30:27 PM]
So, I've done as described in the OP and replaced the launcher aswell as uinstalling EAC. However... now I'm having a problem that the game launches in my native language instead of english (yes, I'd rather play the game in english than my own language.. I'm weird that way). Any tips on setting the default language back to english?
If your Windows firewall is active you can use their launcher and block it from outgoing connection as described here Link