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I was minding my own buisness, building a puzzle map for my pmc account, when the disaster came. I went from 65 fps to 0 as quickly as you can say "wtf", and it stayed that low for minutes. This occured right in the middle of the "Green Section" of the map, rings two and three to be specific. I've racked my brain for reasons why this would occur, but guess what? There are none. Yes, it is only underneath the second and third green rings, everywhere else is lag-free, but as soon as you get near the trouble spots, chaos runs wild. I propose this: I will provide the map download link so that you folks can check the map out yourself, and the first person to solve the mystery of the framerate issue will recieve a monument dedicated to them, hidden within the map. I encourage the use of MCEdit and mods that could be of assistance. So go ahead, try and crack the case, and I guess play the map as well if you want to try a beta-version that doesn't work completley! Download the map here. Godspeed and good luck to all contestants in this competition of sorts...

EDIT: It is not the map in general that creates framerate issues, and changing all video settings to the least intensive option does nothing. The only thing that stops it is pausing my game!

Have you gone around the whole area, especially the green section? This is bizzare. Could it be my minecraft is broken?

No, it's definantley there. Get close to the second green ring... the fps drops like the bass in a dubstep song!

Everythings fine here.

Not to mention that I have a 2006 Vista.

Try flying below it... could there be any other explanation besides my minecraft is failing?

It's very possible that that could be the case. Anyways, now you can claim you had beta-testers

Maybe your anti virus program started to scan?

Marv

My minecraft is fine on all other maps, the only time it fails is near the green rings!!! Also, I'm positive that it isn't another program running, this happens every time I open the map, for multiple days! Please, if anyone solves this mystery I will be eternally greatful.

I'll try and remember to take a peek at this when I get home tonight.

Is that basically a big open void world with some floating areas? I was wondering if it might be lag caused by void particles, but 4luckykid45's pic shows the green circle at around Y=187. You might try turning off particles to see if it makes a difference.

Nope. Particles, render distance, none of it fixes the issue! Try flying under the rings slowly, rather than over the top quickly.

Quote from Tomandgreen

Nope. Particles, render distance, none of it fixes the issue! Try flying under the rings slowly, rather than over the top quickly.

What is your OS, Java installed, and system specs?

There is not a void under it. The ground is apparentally "redstone-ready" flatland.

Windows 7 64-bit OS, 32-bit Java, AMD Phenom II N970 Quad-Core Processor with 4 GB of RAM.

Quote from Tomandgreen

Windows 7 64-bit OS, 32-bit Java, AMD Phenom II N970 Quad-Core Processor with 4 GB of RAM.

I recommend ditching 32 bit java and get 64 bit Java then. Minecraft runs much smoother and with less odd issues if you do.

I just tried your world, no issues here.

I have 32 bit Java and computer. Can I extange for 64 bit? Or I cant?

Quote from 4luckykid45

I have 32 bit Java and computer. Can I extange for 64 bit? Or I cant?

Yes you can, but please avoid bringing anything off-topic into this thread.

As for the OP, rodabon is completely right. I'm 90% sure it's your Java. Don't use the automatic download button, as that will end up giving you the 32-bit. Rather download it manually over here.

I got 64-bit java going, and my problem is fixed! Rodabon, you suggested the fix, but DewaldeDeJager wins the monument becasue he clarified it and provided a link! Regardless, thanks to both of you!