and yes I am not using any firewall/anti virus, etc etc etc,
you are the only person reporting a problem with the game. the reason it hasn't been updated since November is because the game itself has not updated.
it's easy for me to check this since I can run steam, do integrity check, then run trainer and it still works. we don't do beta playtesting garbage version trainers. we will update the trainer for the live normal steam version if and when these developers stop tinkering with the game 5 years later and release a real patch for the game instead of betas.
there is nothing to update here.
best,
Cal