I have an app that has had Admob integrated for years (so it's not a new ad spot).
I just updated Admob to latest "com.google.firebase:firebase-ads:17.1.1" from a previous verison, maybe 15 or 16 something. And consistently I am now getting this in logcat
Failed to load ad: 3 (No Fill)
No fill from any mediation ad networks.
1. If I add my device as a test device, I do get the test ad
2. If I download my app from the Play Store and try, I see ads are working (using the exact same interstitial/admob ID) so account is working...
I know I'm supposed to use test ads when in testing environment, but I'd like to see a live ad before pushing out an app update you know? Did Firebase change something to detect if it's not a "live" app?
(No code because it is the typical admob loading code which has been untouched, and as I said, test ads work)