I did upgrades from image 40 and finally ended up with everything upgraded and Unity 8 still starting fine. So it seems it would tarball related.
The 41 details: version_detail: ubuntu=20160713,device=20160402,custom=20160713,version=41 -> custom tarball was updated from 20160623 to 20160713 -> device tarball was not updated -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1604421 Title: Unity 8 fails to start on staging (xenial) on the phone To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1604421/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs