I have a world that I have been playing on recently through a couple snapshots. It is now on the 1.17 release and whenever I go into the nether only a few chunks load in the nether. If I try to go back to the overworld only a few chunks load too. I have not entered the nether on the world before the full update came out. The nether is completely useless as in this state. I am also using optifine.
Linked issues
duplicates 1
Comments 3


OptiFine problem, duplicates MC-227996. See mod's note there for a potential solution.

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You stated in the report that you are using OptiFine, therefore this issue is invalid. The bug tracker only accepts issues that can be reproduced in vanilla.