[Help] Out of sync problem ..

[rubixcube40]

After about an hour of gameplay...OR...if someone goes afk .(even for 8 seconds)..opens a personal shop..any of these...and everyone looses sync and has to totally exit the client and login again to fix it.....anyone have any ideas as to why everyone on the server is losing sync? 0.o

...Just been awhile since this was posted..checking to see if anyone could offer any help.

[MentaL]