I just downloaded the game fresh from Steam (Attack on Titan / A .O. T. Wings of Freedom), downloaded today's trainer and get trainer activated at the main menu, no problem.
[Edited by PWizard, 2/21/2017 8:07:48 PM]
This is true for me as well, option 7 doesnt fill my bar or does anything when not in titan form. But once I become a titan it freezes the bar for a moment.
What I did to remedy the situation in the meantime is, I made a turbo toggle in Xpadder. So that it spams 7 when I transform. This way I can stay in titan form as long as I want. But I till have to fill the bar normally which kinda sucks.