I'm using the GoogleMobileAdsSdkAndroid.zip (Version 6.4.1) library, with android-13 specified as the target in project.properties in Eclipse.
The ads load, display and refresh ok. However, when I click on an ad, it doesn't click through. It looks like the AdActivity isn't launched, or is immediately being terminated/exiting. The first time an ad is clicked, a black screen appears very transiently, and then it disappears and my app immediately resumes.
I thought that this was just due to it being in test mode, but it also does it on live ads.
Any guidance or suggestions gratefully received.