@DK208 , he is my friend. Let me translate it for you. So here is what happen, server was rebooted after I report my post above, and everything works fine for 15 - 30 minutes. Then later the propeller pack bug come back, @DK208 already use that propeller  pack again when that moment coming. He stuck with that propeller pack. So we decide to try kill him to get the propeller pack and when I finally kill him,  he is disconnected immediately. When he relogin  to the server, the dead screen is show up, but he can't create new character, he said he only saw black screen. On my perspective in other hand, his character is still standing, and he is like phantom, I'm trying to hit him. But no damage effect applied. [Update] Here is his output_log