This can happen when Android is marking up an advertising banner, and at that time it was not fully loaded.
I donβt know if this problem can be circumvented because we donβt have control over this ad and the SDK does not allow preloading of the ad.
I suggest you switch to using HTML banner ads and interstitial ads. You have more control over the placement of advertising, its animation, and you do not need to use the advertising SDK (which can be blacklisted by some security services).
Check this post with me if you have problems with permission independence or opening clicks on HTML ads in your own browser:
http://qa.leadboltads.com/questions/632/how-toandroid-make-html-ad-resolution-independent-and-open-in-native-browser
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