Shadowplay not working unless I Alt + Tab


So I have Nvidia ShadowPlay running when I play, in case I need to document bugs or cool things.

Problem is, most of the time Shadowplay will not run unless I run the game first, then Alt + Tab back into it.

If I do not have anything else running in the background, like a web browser, I cannot Alt +Tab. So not sure if that’s really one bug or two bugs.