I have a pretty standard PreferenceFragment, it is implemented using a FragmentActivity. Nothing really special but I have some (small number) of people using that app reporting that as they scroll the settings some randomly turn themselves off or on. The definitions are pretty simple: 1 below
<SwitchPreference
android:key="speechEnabled"
android:persistent="true"
android:defaultValue="true"
android:title="some title"
android:summary="summary text" />
This is a video from one person reporting the issue:
https://drive.google.com/file/d/0Bx67XBdVKhrKUDVJS24zWmtUa1k/view?usp=sharing