The Trainer worked for the NXT Title League no problem in My Career Mode.
As I progressed to the US Title League it worked for about 6-7 matches...
It stopped after; activating the Health and Stamina prevents accruing and doesn't max the indicator levels like before.
Easy kills, Instant Special, and Unlimited Finishers don't work at all even though you hear the "activated" notification.
I second that, also to add, for me the trainer never worked properly from the start and what i mean by that is:
same issues with health, stamina, easy kills, instant specials and unlimited finishers, but i found that if i press num9 (switch teams option) they seem to work fine, as long as they are activated, for my opponent.
Thank you, hope this gets fixed soon.