[Mechanics] GamezBD Combat

Hello GamezBD staff, I was just wondering what is working as intended and what is still in flux when it comes to combat mechanics?

If possible could you please add a list of known bugs (not class skills, only combat mechanics) and also if it is something that is fixable or something we will have to live with for a long time or ever?

The things I am referring to are mainly the combat mechanics that leave the game wanting and is giving a bad gaming experience;
Knockdown procs twice in a row without a time period of invulnerability towards knockdown (which there used to be)
Healing effects of skills seem to have dropped to around 1/10th
Several stunning* effects can last for several seconds without a time period of invulnerability towards the effects (almost endless "stun")
*Stunning effects means all effects that lead to non-compliance of the character
Several monsters and bosses can knock the weapons out of the hands of the characters which should not be possible at all