SO YEAH,
V1.27
It appears this popped up in their May 19, 2015 update from GBX-Jwhite.
"Fixed an issue where certain key binding descriptions were read incorrectly from the player config file which caused some keybindings to fail to load."
Reference:
http://store.steampowered.com/news/?appids=244160 ,If you wish to read the whole thing.
Essentially speaking, you can't launch and use the trainer After the game is launched.
You have to pre-load the trainer now.
Update: Tried it in a private MP game with someone else with the trainer, fun fact if you both are 1v1'ing for film footage reasons and both do Inf,Resources at the same time and turn it off instantly afterwards. The "out-of sync" anti-cheat system won't kick eachother out.
All the other add-ons such as God, Instant Build/Research and Fast Kill will sync you both out of the game though.