Was given an objective to "Equip 5 Dwellers With a Flamer". Did that, and the bar said "5/5" but would not let me collect the reward of a lunchbox. I ended the game in multitasking, came back, and it said "Equipped 2 Dwellers With a Flamer" and gave me 55 coins. I was supposed to receive a lunchbox. Is anyone else experiencing a similar issue?