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Bug
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Resolution: Invalid
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None
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Minecraft 1.12.2
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None
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Windows 10 , 16GB RAM , I5 6600 , SSD drive
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Unconfirmed
While running or Walking there is very severe lag, basically unplayable.
My 8 year old son is on my 6yr old computer and it runs beautifully.
Mine was running great for our many adventures.
We then started downloading pre-made worlds "Seven Gems" and running with different versions of minecraft. It was working fine, I then loaded "Realms" and suddenly I started getting a little lag. Not too bad at first. Then worse and worse. By the way, I don't think I actually played realms, just downloaded it.
Attempts to fix.
I attempted to download optifine which was not installed. I mistakenly installed a bunch of JUNK programs from the optifine website.... YUK. I removed them, installed a viruses scanner and scanned to find no virus. I have installed latest JAVA 1.8_144. I have reinstalled Minecraft like 4 times. I have done a "repair" it even lags after the reinstalls on brand new world. I boosted java RAM -Xmx4096m -Xms4096m on launcher startup options which did help just a little. Nothing else is running on my machine. My network access is good.