As for minotaurs, did you select individual minotaurs or nothing at all? Like I said, if you fight the default npcs (minotaurs, crawlers, giants, ankous) you do not need to select anything. You only need to select npcs if you want to fight other ones, e.g. rats, goblins etc. So leave the minotaurs boxes blank if you are fighting minotaurs and only minotaurs.
As for drop junk, I will enable it, looks like it was turned off somehow (I just read the code and it isn't even activated ) So in the next version it will actually drop junk now
Latest version is now: 0.23 please allow a few hours for the update to be registered ^^