1) That option isnt working for me as well so it is bugy !
2) make a script by using a script writer which can be found here :

and here:

Read the thread how to use it and you are done. They are save using them as well for the last month now no probs at all.
3) Go to ur Config Window. Then Search for Item Select then you can add which items Agbot needs to pick up. Just press the weapons tab and bring al the selected things to ur Inventery section (sometimes i need to make the screen bigger to see some things xD)
I hope this will help you out