Payload size disconnecting

[ghost]

When using /nbtedit me, as soon as I click save, I get disconnected with the following error message

[18:54:42] [Netty Client IO #11/ERROR] [FML]: NetworkDispatcher exception java.lang.IllegalArgumentException: Payload may not be larger than 32767 bytes at net.minecraft.network.play.client.CPacketCustomPayload.<init>(CPacketCustomPayload.java:28) ~[lh.class:?] at net.minecraftforge.fml.common.network.internal.FMLProxyPacket.toC17Packet(FMLProxyPacket.java:142) ~[FMLProxyPacket.class:?] at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher.write(NetworkDispatcher.java:534) ~[NetworkDispatcher.class:?] at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:738) ~[netty-all-4.1.9.Final.jar:4.1.9.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:801) ~[netty-all-4.1.9.Final.jar:4.1.9.Final] at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:814) ~[netty-all-4.1.9.Final.jar:4.1.9.Final] at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:794) ~[netty-all-4.1.9.Final.jar:4.1.9.Final] at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:831) ~[netty-all-4.1.9.Final.jar:4.1.9.Final] at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1032) ~[netty-all-4.1.9.Final.jar:4.1.9.Final] at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:296) ~[netty-all-4.1.9.Final.jar:4.1.9.Final] at net.minecraft.network.NetworkManager$4.run(NetworkManager.java:245) [gw$4.class:?] at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163) [netty-all-4.1.9.Final.jar:4.1.9.Final] at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:403) [netty-all-4.1.9.Final.jar:4.1.9.Final] at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:442) [netty-all-4.1.9.Final.jar:4.1.9.Final] at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858) [netty-all-4.1.9.Final.jar:4.1.9.Final] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]

My player.dat is only 7kb, so somehow the 32kb limit is getting reached