Hi Thomas,

1. Looks like based from my testing, i can't replicate the issue (using build 231 in both emulator & device, no transparent background on detail), based from our programmer observation, looks like this is just a memory issue/ lagging. Could you tell me what build did you use? and what are the steps did you use to reproduce this issues? thanks!

2. Actually from my testing, this issue only happened if i hold the transition then change device orientation but if i try to change orientation in exact time when sliding what happened is my slider simply just wait for the slider to slide first then it will change orientation. However in my case if i remove my presses it will go back to normal, is this the same with issue that you have? 

For android this issue has already filed under CROS-809, however in my case it is a little different as the app will close automatically rather than continue.

Hope that helps

Best Regards,
Arief