Why does this happens?

[alito94]

When I'm ingame, suddenly everything goes blue, blocs turn invisible and it doesn't fix until i completely close minecraft....

This started to happen since i use 1.7.2...maybe thats the problem? idk...

 

[DoUEvenShift]

This looks like a hack known as "X-ray" If you are using a hacked client that could be it, otherwise I haven't heard about this issue with 1.7.2

 

[YoungWolfyy_]

You might be having chunk errors. Redownload Minecraft?

 

[filett55]

If that's not xray,you have to try to play on 1.6.4

 

[MNGLOGANp]

I'd say reinstalling minecraft.

 

[Mooclan]

Well, it looks a bit more like something called "Cavefinder" or "Redstonefinder" (Xray is for ores and whatnot)

Do you have any mods on, perhaps a suspicious download?

 

[Tal_Pal]

If I am not mistaken this has happened to one of my friends once or twice. Its some sort of bug or something. I don't know much about it cause I have never had this problem but I don't remember if re-logging fixes it or not, I believe it's just restarting minecraft that fixes it. its sad to say but it's basically built in chest, lava, and water finder with no way to turn it off xD Like I said though I don't know much about it and if I'm not mistaken one of my friends has had this happen to them because I remember having to escort him around.

Oh and I almost forgot, changing his texture pack fixed the problem for him!!!

 

[Tyco]

Try f3+a

 

[mr_pendle]

This happened to me, I changed texture pack and it was fixed.