Can you also show me your graphic settings? Especially if you're using vbo mode or not.

Well sometimes i turn all graphics settings off (VBO) too if im doing fast things for no map loading etc. VBO somehow takes somehow fps down for me, but usually im with max graphics when doing peaceful things...

It's important for me to see your exact Graphic Settings, so that I can reproduce the bug and fix it. Can you take a screenshot of your graphic settings when the drop bug occured for you? In my tests today, I could never get an item having priority over an npc when clicking on both.

There is my settings for different actions
With second pic i killed beasts

Only non-vbo mode has this issue. Will be fixed, thanks.