This appears to be random but only seems to have started around the time i made signs to travel along or the cellar in the stone mansion or tamed a cow only new things that i made from the crashing events.
Also this does not log you out of the game only seems to sever the connection from a client to the server however the server still sees you as being online for some time maybe 5 min or so.
i have been debuging with the Amber client but doesn't seem to healed much info on what is causing the crash's .. (Unknown source?)
Is there perhaps some other tool to debug with?