I just tried out the new snapshot. After i already created a buffet world with void in Overworld i tried Mooshroom Shore Island with Overworld an after a while the Screen just showed this:
[media]
I opened the log file to see if there is some sort of crash, and i found that a crash report has been made, but minecraft is still open.
Crash report:
Full log:
PS: Minecraft didn't respond to clicking the red X or doing ALT-F4 so i had to close it with the task manager.
Description: Exception in server tick loop
java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.ArrayIndexOutOfBoundsException: 61
at net.minecraft.server.MinecraftServer.i_(SourceFile:396)
at dbc.a(SourceFile:116)
at dbc.d(SourceFile:132)
at net.minecraft.server.MinecraftServer.run(SourceFile:504)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.util.concurrent.ExecutionException: java.lang.ArrayIndexOutOfBoundsException: 61
at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2272)
at net.minecraft.server.MinecraftServer.i_(SourceFile:394)
... 4 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 61
at wj.a(SourceFile:106)
at wj.c(SourceFile:64)
at bjg.a(SourceFile:33)
at bjn.a(SourceFile:85)
at bjn.a(SourceFile:81)
at bji.a(SourceFile:52)
at bjo.a(SourceFile:144)
at sm.a(SourceFile:230)
at bmk.a(SourceFile:138)
at bmw.a(SourceFile:76)
at bmw.a(SourceFile:17)
at bog.a(SourceFile:22)
at bog.a(SourceFile:15)
at bog.a(SourceFile:10)
at bql.a(SourceFile:18)
at bql.a(SourceFile:12)
at blk.a(SourceFile:27)
at avq.a(SourceFile:513)
at biy.a(SourceFile:110)
at sv.a(SourceFile:12)
at su.a(SourceFile:33)
at bjc.a(SourceFile:85)
at ta.a(SourceFile:54)
at ta.a(SourceFile:23)
at zy$a.a(SourceFile:143)
at zy$a$$Lambda$934/1982185364.apply(Unknown Source)
at java.util.concurrent.CompletableFuture$AsyncApply.exec(CompletableFuture.java:501)
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:902)
at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1689)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1644)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
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is duplicated by
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Please check if that's still an issue for you in the 1.13.1 release.