Why is my screen yellow???

[AC Question]

I was reading from my LG Stylo earlier today and all of a sudden I have this yellowish tint to it. Now when my phone is turned horizontal or landscape the original color returns. But in vertical or portrait mode it has the yellowish tint. When I am in settings and click "more" for the extra options not listed it returns to the original color. But when I return back to my home screen or enter into another app it becomes yellow again. I have tried restarting my stylo. Allowing it to cool off. Turn the power off for a couple of minutes. Yet nothing seems to be working. I don't know what else to do. This my second stylo and I have never had this issue with either. Not sure if this helps but the current one was sent from my insurance carrier after the 1st one recieved water damage. But someone please help me. It's very aggravating and inconveniencing.