Why does the Android recent apps list show black or transparent screenshots?
<p>Why do I commonly see blank or transparent screens for apps in my recent apps list? Is this a theming problem or a bug in the recent apps list?</p>

<p><img src="http://i.stack.imgur.com/TvpHB.png" alt="black"><img src="http://i.stack.imgur.com/JTJEwl.png" alt="transparent"></p>
