Question: MBP with second display - app on wrong montor
I use my laptop at work connected to another monitor. But when I get home, the MBP is not connected to a secondary display. When I open a few of my apps, they try to open on the second display - which isn't connected. I can see the app running, and when I press F3 - I can see that it is on another display (that doesn't exist). How can I get the app moved to my laptop screen. Remember, there are no other monitors connected to my laptop when I'm at home. The app remembers a screen - that doesn't actual exist when I get home.
MacBook Pro (15-inch, Late 2016), macOS High Sierra (10.13.1)