Uitextfield borders are gone.....

I have an app in the App Store that was working as it should. But all of a sudden I have a problem. The app is a golf scorecard that has vertical and horizontal stack views. Inside the stack views are uitextfields (Proportionally) But on my Iphone 7 (that I use for development by the way) the borders on the textfileds in the stackviews are blank (gone). It still shows the number when inputted, but the borders are blank. I am using auto layout by the way. The problem is on my wives Iphone 8 plus it is working as it should. I have delete my app and redownloaded it, but the borders are still gone. I am at a loss as to how to fix this. I will first find another person that has an Iphone 7 and try it to see if it has the same output. But I am at a loss on which way to proceed.....P.S. I am using Appearance light in my plist by the way and the background is white color.