[Server thread/ERROR]: "Silently" catching entity tracking error.
net.minecraft.server.v1_13_R2.ReportedException: Adding entity to track
	at net.minecraft.server.v1_13_R2.EntityTracker.addEntity(EntityTracker.java:138) ~[patched_1.13.2.jar:git-Paper-630]
	at net.minecraft.server.v1_13_R2.EntityTracker.track(EntityTracker.java:82) ~[patched_1.13.2.jar:git-Paper-630]
	at net.minecraft.server.v1_13_R2.WorldManager.a(WorldManager.java:21) ~[patched_1.13.2.jar:git-Paper-630]
	at net.minecraft.server.v1_13_R2.World.b(World.java:1136) ~[patched_1.13.2.jar:git-Paper-630]
	at net.minecraft.server.v1_13_R2.WorldServer.b(WorldServer.java:998) ~[patched_1.13.2.jar:git-Paper-630]
	at net.minecraft.server.v1_13_R2.WorldServer.lambda$a$4(WorldServer.java:950) ~[patched_1.13.2.jar:git-Paper-630]
	at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184) ~[?:1.8.0_201]
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) ~[?:1.8.0_201]
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) ~[?:1.8.0_201]
	at java.util.Iterator.forEachRemaining(Iterator.java:116) ~[?:1.8.0_201]
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) ~[?:1.8.0_201]
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) ~[?:1.8.0_201]
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) ~[?:1.8.0_201]
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151) ~[?:1.8.0_201]
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174) ~[?:1.8.0_201]
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:1.8.0_201]
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418) ~[?:1.8.0_201]
	at net.minecraft.server.v1_13_R2.WorldServer.a(WorldServer.java:947) ~[patched_1.13.2.jar:git-Paper-630]
	at net.minecraft.server.v1_13_R2.World.addChunkEntities(World.java:2531) ~[patched_1.13.2.jar:git-Paper-630]
	at net.minecraft.server.v1_13_R2.Chunk.addEntities(Chunk.java:963) ~[patched_1.13.2.jar:git-Paper-630]
	at net.minecraft.server.v1_13_R2.PaperAsyncChunkProvider$PendingChunk.postChunk(PaperAsyncChunkProvider.java:535) ~[patched_1.13.2.jar:git-Paper-630]
	at net.minecraft.server.v1_13_R2.PaperAsyncChunkProvider.processMainThreadQueue(PaperAsyncChunkProvider.java:116) ~[patched_1.13.2.jar:git-Paper-630]
	at net.minecraft.server.v1_13_R2.PaperAsyncChunkProvider.processMainThreadQueue(PaperAsyncChunkProvider.java:110) ~[patched_1.13.2.jar:git-Paper-630]
	at net.minecraft.server.v1_13_R2.PaperAsyncChunkProvider.processMainThreadQueue(PaperAsyncChunkProvider.java:105) ~[patched_1.13.2.jar:git-Paper-630]
	at net.minecraft.server.v1_13_R2.PaperAsyncChunkProvider.processMainThreadQueue(PaperAsyncChunkProvider.java:98) ~[patched_1.13.2.jar:git-Paper-630]
	at net.minecraft.server.v1_13_R2.MinecraftServer.b(MinecraftServer.java:1020) ~[patched_1.13.2.jar:git-Paper-630]
	at net.minecraft.server.v1_13_R2.DedicatedServer.b(DedicatedServer.java:439) ~[patched_1.13.2.jar:git-Paper-630]
	at net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:940) ~[patched_1.13.2.jar:git-Paper-630]
	at net.minecraft.server.v1_13_R2.MinecraftServer.run(MinecraftServer.java:837) ~[patched_1.13.2.jar:git-Paper-630]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201]
Caused by: java.lang.IllegalStateException: Entity is already tracked!
	at net.minecraft.server.v1_13_R2.EntityTracker.addEntity(EntityTracker.java:112) ~[patched_1.13.2.jar:git-Paper-630]