The Defence System Might be Bugged, or just not working right, Ive heard this from other players to, so ik it cant just be me, Another thing if I remember correctly, A Player very lower level than you isnt suppose to be able to hit you but Right now they can O.o and When I hit Mobs they still dont stay in Place but I guess when Daneos said he fixed the ( Melee attack ) he only meant the auto attack and not all of it we know this happens alot to mobs who cant Move, Like those Robots in West City or The Trees on Mushroom Rock North if you Hit those enemies they Move backwards very far , but this happens when I hit Regular Mobs to :c imagine being Melee trying to Kill some enemies and When you hit them there Repelled backwards like you have the Flee ;c
Seem to be the case not to mention you still take the same damage even if ur defence is really high for example my base defence is 2.2k for physical i take 200-400 from mobs while in kaioken x3 i have 7k def for physical i still take the same damage.