Why ads are not displayed in the application downloaded from the Play Market?

Question

Android

There is an application published in the Play Market. I built AdMob ads into it (banner and interstitial ad). The bottom line is that if the .apk file of the application installed on the device was downloaded from the file storage (Yandex disk), or transferred to the phone itself via a cable, everything works fine, the banner and interstitial advertising are displayed as needed. But if the same .apk file was downloaded from the Google Play Market, there are simply no ads in the application. Exactly if the application was downloaded from the Play Market, there are no ads in it. In the Play Market Console, I have already re-uploaded it 4 times, and still nothing helps, I don’t know what to think anymore. I checked on 3 different phones, on each of them everything is the same as I described. And this is my second application, with the previous one there was no such problem. What could be causing this problem?

Answer 1

What does it mean to fill in manually? As if by default, the studio creates a project with two types of builds, these are debug and release, builds gradle, respectively, through it you can easily enable or disable something, depending on whether debug, release, staging, testing, etc. I suspect the fact is that there is advertising in debug, but there is no advertising in release, see the source code, somewhere there is a flag missing, or there is no suitable advertising yet, in debug, as far as I remember, Google always shows some kind of stub.