when HP and shield HP work in the opposite direction

KoGaMa Profile: www.kogama.com/profile/24180870/
Web Browser: Chrome
Client: WebGL
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Steps to Reproduce
"read it carefully"
players HP bug :
step 1 : go on new project
step 2 : put mutanto and heal block
step 3: do something for harm your HP
step 4: use(take) mutanto and go on heal block

The difference between hp and shield hp :
DO ALL STEPS AGAIN BUT without harming ur hp (go with full hp and use mutanto and then go on heal block)*wait 30 seconds for shield HP*

Additional Information (Optional)
HP with mutanto : you will get heal screen on your avatar but no heal HP (BUG)
SHIELD HP with mutanto : you will get heal screen on your avatar with healing hp (NOT BUG)