i have the complete version on steam and can confirm it doesn't work
well i made the trainer, and i also have the game on steam and for the 5th time i have tested the trainer with the game and it works 100%. the version on steam is 2613. if you have some magical way to make steam update the game to 2614 or some other version than i be glad to look at it, otherwise, the trainer is working fine with legit steam 2613.
also, 'doesnt work' means NOTHING and doesn't help at all. i have ZERO information about what version your game is, what version your OS is, where your steam is based out of (US? GERMAN?) and etc.
blame steam in US for having version 2613... not me
I've got LA Noire with the pre order of max payne 3. I installed it, it is at 2613, but the trainer don't work (it says "trainer could not find game..." or something like that, the message disappears as fast he appeared). At the first launch of the game, the social club ask me to restart the game to complete an update installation. i actually trying (trying because i've to re-download the entire game) to re-install the game, and launch it offline to skip the social club update and to see if it comme from this.
I've the steam version of the game, and the French version of steam. (ipso facto, i've probably have the french version of the game). P.S : even after the social club update, the game is still in 2613, but the trainer don't find the game