Something is wrong with post #6.
You said to replace this part from "auctionframe.lua! 
	
	
	
		Code:
	
	
		        btn:SetScript("OnMouseUp", function(self, button)
                UnlockAllHighlight()
                self:LockHighlight()
                private:OnSidebarButtonClick(private.modes[i], button)
            end)
	 
 but it doesnt exist. The part that comes closest to it is:
	
	
	
		Code:
	
	
		            btn:SetScript("OnMouseUp", function(self, button)
                    UnlockAllHighlight()
                    self:LockHighlight()
                    private:OnSidebarButtonClick(mode, button)
                end)
	 
 
"modes
" part doesnt exist. Does this matter at all or what? Because for me the toon does a part of the cancelation process and runs to get mail instead of waiting till its done. And as I understand Im not the only one having this problem.