disconnection issues for servers and more

When attempting to connect to a 14w28a server, the client is disconnected and is shown the following message:
Connection Lost
Internal Exception: io.netty.handler.codec.DecoderException: java.lang.IndexOutOfBoundsException: readerIndex(36) + length(65) exceeds writerIndex(56): UnpooledHeapByteBuf(ridx:36, widx : 56, cap: 56)