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via Mojang JIRA by [Bot] Hopper, 1 year ago
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java.lang.IllegalStateException: Already tesselating!	at blz.a(SourceFile:159)	at bls.a(SourceFile:854)	at bll.a(SourceFile:932)	at bll.b(SourceFile:813)	at azd.ad(SourceFile:780)	at azd.e(SourceFile:704)	at net.minecraft.client.main.Main.main(SourceFile:103)