Random Unknown packet header syserr

[undeadlegend 0]

Hi, sometimes, when a player finish to destory a metin or teleport, their caracter becomes bugged, when they log in into it the connection with the server is lost, no character showed, nothing in the chat, you can't type anything in the chat.. etc. "packet_info.txt" is generated in core1, 2 with 0 values. I delete this txt and when he tries to login back the packet_info is regenerated.

Client syserr:

0408 18:45:29179 :: Unknown packet header: 218, last: 22 16

but if they close and reconnect the packet header is not identic. @_@