Originally posted by Gnome d'War:

Originally posted by us271934:

This is my experience also - about 1 million times

That has not been my experience at all, sadly. I'll dump a large stack of stone while mining, pick up the ore I couldn't previously carry, and it will auto pickup the stones again.

I've never had it function like that, further, you can't "auto pickup" a dropped item without leaving render completely and returning. The game disables auto pickup on dropped items until its reloaded. Either you have some broken mod messing with you or are experiencing a freakish amount of bugs my friend.