After using withdraw with a nearby container, I receive a success code OK{0}. The creep is shown to have 50x energy in store. One tick later all the energy of the creep is missing. My creep consists of just a MOVE and a CARRY bodypart.

Q: Do I have to have at least one WORK bodypart? Q: Why do I carry for just one tick the energy, as intended? Q: Why doesn't it fell to the ground but disappears at all?

Of course I tried to optimize the required body parts for just a "carrier".

Can you help me understanding the right handling of withdraw? I didn't find any fact in the API doc, which argues against my attemp.

Thanks.