Well the threas sais it.. with vanilla it runs but since the new launcher is there Optifine crashes when Java OpenJDK 15.0.2.7 is used I hope optfine can fix this ...
I see compatible with Forge 35.0.1, not higher. But it's a little bit annoying thing. I can't install and uninstall any new mod at all. My world now corrupted.
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