Duplicate bees in list trying to send bees on mission


I can't tell how that happened, since my son was playing. He somehow managed to select one bee for both a harvesting and a hunting mission. This bee showed twice in the list. When trying to send the bees on a mission, I then got the message "DuplicateBeesInList" (missing blank). Get ting the message was correct, but the situation shouldn't have happened. Sorry for not being able to explain exactly how this happened.