Minecraft::RCON does not have fragmentation support (support for large responses from the Minecraft server being broken into multiple packets). Since there is no support, Minecraft::RCON does not handle fragmented responses gracefully, which causes a de-sync and impartial responses in command results. _get_packet() simply sends the next packet in sequence, so the following command might get the next packet from the previous command, instead of the response it was expecting. As such, the module is unfortunately not usable for anything other than commands with known, guaranteed short results.
RT for rt.cpan.org