Hi JR,
Please note that we can only assist you with your code implementation specific to loading and showing the Ads via the Mobile Ads SDK. Since you were able to display ads in some of your layout modes (e.g. portrait), then it's safe to assume that there is no issue with your Ad Unit Id.
I'm assuming you are implementing
alternative resources when creating the multiple layouts. That said, I made
this modifed BannerExample app which has alternative layouts for both portrait and landscape mode (with the same Ad Unit Id and
View Id for the AdView) and the test ads displayed successfully for both orientation. Thus, if you are indeed using alternative layouts for each mode, then it should have worked as expected similar to the modified sample app.
For us to further investigate on our end, could you provide to us the error code captured (using
Ad events) when the ads failed to load on your end?
On the other hand, when you said "configuration changes do not effect the ad", are you pertaining to ads reloading when device orientation changes? If so, then I'm afraid this is expected behavior because the SDK doesn't cache the AdView when orientation changes. In Android, activities are destroyed and recreated when orientation changes and thus, the views (e.g. AdView) inside will be reloaded again.
Regards,
Ivan Bautista
Mobile Ads SDK Team