[13:49:33] [Netty Server IO #1/INFO]: An error occurred with entity meta data for ENDER_DRAGON
[13:49:33] [Netty Server IO #1/WARN]: java.lang.NullPointerException
[13:49:33] [Netty Server IO #1/WARN]: 	at us.myles.ViaVersion.metadata.MetadataRewriter.writeMetadata1_9(MetadataRewriter.java:26)
[13:49:33] [Netty Server IO #1/WARN]: 	at us.myles.ViaVersion.transformers.OutgoingTransformer.transformMetadata(OutgoingTransformer.java:517)
[13:49:33] [Netty Server IO #1/WARN]: 	at us.myles.ViaVersion.transformers.OutgoingTransformer.transform(OutgoingTransformer.java:220)
[13:49:33] [Netty Server IO #1/WARN]: 	at us.myles.ViaVersion.handlers.ViaEncodeHandler.encode(ViaEncodeHandler.java:63)
[13:49:33] [Netty Server IO #1/WARN]: 	at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:107)
[13:49:33] [Netty Server IO #1/WARN]: 	at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:658)
[13:49:33] [Netty Server IO #1/WARN]: 	at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:716)
[13:49:33] [Netty Server IO #1/WARN]: 	at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:706)
[13:49:33] [Netty Server IO #1/WARN]: 	at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:741)
[13:49:33] [Netty Server IO #1/WARN]: 	at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:895)
[13:49:33] [Netty Server IO #1/WARN]: 	at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:240)
[13:49:33] [Netty Server IO #1/WARN]: 	at net.minecraft.server.v1_8_R3.NetworkManager$4.run(NetworkManager.java:198)
[13:49:33] [Netty Server IO #1/WARN]: 	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:380)
[13:49:33] [Netty Server IO #1/WARN]: 	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:357)
[13:49:33] [Netty Server IO #1/WARN]: 	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
[13:49:33] [Netty Server IO #1/WARN]: 	at java.lang.Thread.run(Unknown Source)