This is actually resolved in 4.13 but there is a rendering issue in 4.13 with launching onto certain Android devices. Therefore, you might get a grey screen that isn’t rendering properly if you test on your device. My for example gets this issue. We’re working on a fix for this rendering issue as well.
UE-6135 is the tilt axis issue and UE-34053 is the rendering glitch on Android in 4.13.
Thank you!