Why does Android Marshallow UITest Reboots Device

Question

When trying to update our app to work correctly with Android Marshmallow (API lvl 23) I went to run our UITest tests and found that on both physical devices and on the emulator the entire device reboots as if it has crashed.

This occurs when both running each test individually (first one passes, then reboots on second) and on running all tests.

I have testing this on a Nexus 5, 6, and 9 emulator and a physical 5 and 6 with fresh Marshmallow upgrade with the same behavior.

Has anyone else come across this problem or know of a solution?

Answer 1

As of Emulator (Intel system image) revision 8 for Android M 6.0 (API 23) and UITest 1.2 this no longer occurs.
I'm not sure what was causing the problem, but updating fixed.