---- Minecraft Crash Report ----
// My bad.

Time: 8/6/20 3:24 PM
Description: Exception in server tick loop

java.util.concurrent.CompletionException: u: Exception generating new chunk
	at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:273)
	at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:280)
	at java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:961)
	at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:926)
	at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442)
	at zu.b(SourceFile:58)
	at zu$$Lambda$4225/119868154.run(Unknown Source)
	at aob.e(SourceFile:94)
	at aob.a(SourceFile:137)
	at aob.run(SourceFile:105)
	at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1402)
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1689)
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
Caused by: u: Exception generating new chunk
	at zs.a(SourceFile:579)
	at zs$$Lambda$4261/699495355.apply(Unknown Source)
	at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
	at zs.a(SourceFile:562)
	at zs$$Lambda$4258/533721112.apply(Unknown Source)
	at java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:952)
	... 12 more
Caused by: java.lang.NullPointerException
	at bsd.a(SourceFile:460)
	at chl.a(SourceFile:760)
	at cfx.b(SourceFile:107)
	at cfx$$Lambda$1772/194298413.doWork(Unknown Source)
	at cfx$d.doWork(SourceFile:263)
	at cfx.a(SourceFile:219)
	at zs.a(SourceFile:568)
	... 17 more


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
	Minecraft Version: 1.16.2 Pre-release 2
	Minecraft Version ID: 1.16.2-pre2
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_51, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 1132049040 bytes (1079 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB)
	CPUs: 8
	JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
	Player Count: 1 / 8; [aah['misode'/2058, l='ServerLevel[Dimensions]', x=0.50, y=80.16, z=0.50]]
	Data Packs: vanilla, file/invalid_biome_id
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.