I tried to implement MoPub interstitials in my libgdx android application.
When I pass a wrong ID in the MoPubInterstitial() constructor, the onInterstitialFailed() method in the listener is called correctly, but when I pass my correct ID nothing happens. onInterstitialLoaded() should be called eventually, but it isn't. MoPubInterstitial.isReady() never is true.
Am I missing something? I don't know, which part of my code I should paste. I'm out of ideas, how to debug this.
Any suggestions?