I found issue that Google Maps V2 for Android are not shown on certain devices (both release version).
Devices for comparison: Nexus 5 and 1 plus 1.
Does it make sense the package name? I have package name: com.severenity - without third part. I have created absolutely new project from scratch using maps template and it worked with name: com.severenity.test. I also have SupportMapFragment inside my another fragment. With MapView on both project maps are not shown. Any ideas?
Here is what is going on with this issue, may be helpful for others:
In my project I had, lets say, CustomFragment, which had in its layout SupportMapFragment:
<FrameLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/map" /> <!-- other views go here -->
And it does not work, BUT! I had "hardwareAccelerated='false'" in AndroidManifest, so after I turned it to "hardwareAccelerated='true'" it started to work on other devices. Magic? At least, this is the answer.