I'm having the same issue with health as Von. Worked perfect on 1st level. about halfway through 2nd level it seems to stop working. Tried disabling/enabling & no change. Ammo works perfect. Haven't tried the xp option yet since it unlocks achievements, will wait till later in the game for that. lol
Noticed the inf health portion of the trainer works for all of level 1. Half of level 2, half of level 3 then stops working entirely. Ammo works all the time though
for me the trainer works ok, only thing that not work for me is the rank up..maybe i need to try to maintain enable at the end of the level? thanks for your work!