I performed the following sequence of commands:
/dis cow
/dvs
/undis
And it kicked me with the following error: Internal Exception: io.netty.handler.codec.DecoderException: java.lang.IndexOutOfBoundsException: readerIndex(3) + length(1) exceeds writerIndex(3): PooledUnsafeDirectByteBuf(ridx: 3, widx: 3, cap:3)