Window capture of browser still records other browsers when I switch to them during capture

[DaveyMames]

I set a window capture to capture Chrome which has a full screen video playing. On the video I press the Windows key on my keyboard so I can do something else while the video is being captured so I move to my Firefox window yet OBS then captures Firefox. Why does it do that when I set the Window capture to capture Chrome? Any suggestions on how to make sure it only captures the Chrome window?