One of our dogs does this also. She won’t come back into the house unless I am at the door asking her to come back in. If it’s my husband trying to get her in, she just stands there. Odd, too, because she’s his dog! 
Poppy & Daisy do this every time. And they can tell the difference sounds of the treat bags, and will think about which one they’ll respond to.
The super high reward ones sometimes are the only way to get them inside.