Is confirm transaction packet from server always not accepted? Spigot & minecraft lan(integrated) server send it not accepted when it should be accepted(i think). Maybe it is a bug somewhere in my code?(probably not) Is there a reason why it works like this? I'm too lazy to search why it is like this, because it works, so i will ask here instead.. S = sent packet, R = received packet //...Drop item code... S-Click window(wID:0, s:36, drop stack) R-CTc(a:false) R-WI(wID:0) R-SS(wID: 255, s:-1, i:null) R-SS(wID:0, s:36, i:null) S-CTs(a:false) S-PPL //..wait, repeat for whole inventory, player will drop everything.. so it works..