Applying Heal 2 times and not being healed after restarting

I have applied Heal on one of my character and exit the game. When I returned to the game, I found out that my first aid pack is used but my character is back to the wounded state.
So the second time I try to heal my character again then exit the game. Another half hour passed and when I returned to the game, my character back into the wounded status again and my first aid is indicated used up once more.
This is quite irritating and wasting my time as I want to play by relying on the 5 first aid that needs time to recharge.
Please investigate and fix this bug! Thanks.

When you exit the game, are you quitting out of an active battle, or do you back out before the fight actually starts?

I have seen something similar, if I go from my phone to my tablet it doesn’t seem to carry the heal across. However I’m pretty sure that I get the healthpack back as well. I have sorta noticed it a few times but haven’t really tracked it. I will try and keep a little bit closer of an eye on it.