Immortal hulk incorrectly losing gamma?

I recently pulled immortal hulk and was playing around with him in AQ and it seems like he is incorrectly losing gamma.
I finished one fight immortal with 100 gamma and then had only 75 as persistent charge entering next fight.
Then in another fight I had 20 health, 20 gamma and finished the defender triggering immortality with an sp1 only to see I only had 20 gamma persistent charges heading into the next fight.
Is anyone else experiencing this? Or am I incorrectly understanding his gamma and he is supposed to be losing health like this?
I finished one fight immortal with 100 gamma and then had only 75 as persistent charge entering next fight.
Then in another fight I had 20 health, 20 gamma and finished the defender triggering immortality with an sp1 only to see I only had 20 gamma persistent charges heading into the next fight.
Is anyone else experiencing this? Or am I incorrectly understanding his gamma and he is supposed to be losing health like this?
0
Comments
Because for the example of 20 health and 20 gamma I trigged immortality launching my special then I go into the next fight while still on 1 percent health and only 20 gamma.