setOrientation on error 13 still turn the screen when we come back in an application

[Nicolas-Menettrier]

When i do a driver.setOrientation("landscape") on my launch screen (who can't be in landscape mode) it fail with the error status 13 which is normal, but when i go into an application like google chrome my phone go in landscape mode. I tried to setOrientation("portrait") on fail but it's not working. Any idea why this behavior ?