Parry/Block does not work immediately after heavy attack

As berserker, if you press the parry/block button before the heavy attack animation ends, as soon as the attack animation completes, the block anymation will be played but no parry/block will happen even if the Zed started the attack after the block animation completes. I have tested this with both bosses, FP, scrake. I only tested several times with the Shield but it apparently does happen with the other weapons.
I am not sure what the intended behaviour is, and if the bug is the animation being played or the block not happening, but I suppose it is the latter. Am I right?
I did not test this with the light attack, but with the heavy attack the bug happens almost 100% of the time even with <30ms ping (at first I tought it was latency related).

Another minor issue, one that I didn`t think it deserved its topic, is that with high ping (>150ms) sometimes the player takes damage before the Zed attack animation starts. I did not see this with <150ms ping.

Parry/Block does not work immediately after heavy attack