Cheat Engine

[falling19]

I've used cheat engine in many game.But i got a problem with megaman x 8.When i download the trainer +15 for megaman x 8 there's an option written "infinite sp power",with that option i can use X'charge shot for every kind of weapon"fire or ice..."but when i get the icarus amor and hermes amor the skills of the amor are "giga crash and ....." i don't remember.With those skill the "infinite sp power" option is useless then i tried to used cheat engine but i doesn't work.This problem happended to "tenshouha" zero's skill give him ability to send a big light strike when he punchs the ground.Then i noticed i can't use cheat engine with the auto-change value(icarus amor automatically increases its power each time i use giga crash and when the power is max i can use it agin).I don't know why.Please help me !!!!!Thanks very much.