Galaxy s6 unlocks to contacts instead of home screen

[AC Question]

I have a s-view case and noticed I was taking screen shots and calling my favorites while in my pocket so changed my lock type from swipe to pattern. since then, whenever I unlock my phone, it'll open up my favorites instead of the last screen or app I was on. I don't know what or how I changed that and can't put it to how it was before. I even changed my lock type back to a regular swipe and it still unlocks to favorites. any ideas??