This is a fairly well know problem with both nvidia and AMD graphics cards which causes the position of all windows to reset after the monitor turns back on. Some info is listed below:

http://superuser.com/questions/630555/turning-displayport-monitor-off-disables-monitor-completely
http://www.ninjacrab.com/persistent-windows/

Would it be possible to get this functionality in displayfusion?

Thanks!

Found this for when the PC sleeps/resumes, is there any way to hook this to monitor off?
https://www.displayfusion.com/Discussions/View/opened-apps-move-from-secondary-monitor-to-primary-monitor-when-monitors-wake-up/?ID=40ec0456-3ddc-431c-b84b-33e125d53793

Thanks, I set it up, will let you know how it goes.