PC Mobs walking through blocks while I'm in multiplayer server

[josesi]

Well title explain all but I can let a gif to show you what I mean

Gyazo Screen Video

gyazo.com

(Not only me, my friend watch it too)

 

[josesi]

Up, looking for help, still doing that and it's unplayable

 

[josesi]

Up, looking for help, still doing that and it's unplayable
x2

 

[josesi]

Up, looking for help, still doing that and it's unplayable
x3

 

[Travlordian01⚡️]

It has something to do with Npc smoothing, I think you can turn it off in the settings, also are you runnin 1.4.0.5?