Adding str reduces physical damages of ice strike

Hello,

I noticed something peculiar. In my current state, if I add +5 str in my passive skill tree, my physical damage for ice strike is reduced.

I could understand if I was removing str (maybe some item would not be compatible anymore), but adding str and losing physical dmg, it's strange.

Also, I believe str is not directly linked to physical dmg.

On top of that, if I add more str after +5, it doesn't do anything anymore (no more damage reduced).

I tried to reproduce this using PoB2, but this problem doesn't occur there (this is why I think it might be a bug).

Before the Tenfold Attacks node (which gives +10 str):



And after:

Do you have something that increases your damage while you're life is full?

Oh you're right, it was just a small amount of max life increase, I didn't realize I was not full life.
I also have the Killer Instinct node that gives phys dmg boost if full life.

Thanks :)