I am developing an iOS app with SwiftUI but I am having issues with AdMob banners. While developing and testing the ads I used the test AppID and AdUnitID, and all is working correctly. The banner ad shows up correctly in the simulator and when I run locally on my iPhone. I then set the AdMob AppID and AdUnitID to my own (not the test ones) to submit my app to the App Store. When people download my app from the App Store, the banner just shows blank. I created my AdUnitID in AdMob almost a week ago, but the banners are still showing up blank. Any suggestions on what I could be missing or doing wrong? Thanks!