Hacks? I'm not too sure..

[Nobeeswax]

So, this has happened to me at multiple ocasions.

I've been crouched in, or behind a tree (sometimes a whole forest) and my enemy will spot me.. Not sure how but they will start sprinting directly in my direction and whip me out.

I really Fu**ing bugs me cause i enjoy playing a stealthy role and not being able to sneak up or hide just wrecks it.

 

[Darkiboy]

your player might stick out a bit and it would be enough for someone to spot you but it could also be hacks...

 

[Nobeeswax]

I highly don't think so i've been hidden. Thanks for the suggestion though.

 

[InternetC]

Slow chunk loading.

 

[ShaunDepro]

Yeah, entities load before blocks, and a small part of your character might be sticking out so there isn't really a way to prove it.

 

[Nobeeswax]

Yeh, just sucks you know.. Being behind a full forest and guys that you followed just like turn around and come directly to you with no dought..

 

[enorix]

If you use optifine and turn off the fog and turn down the render distance to short or lower, you can see entities before the chunks load.