With the latest 4.8.3
Orientation Setting : Sensor Landscape
Phone Orientation Setting : Portrait
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1. Start app while phone holding in Portrait : Failed (Success for 1st time only due to OBB checker)
2. Start app while phone holding in Landscape : Failed (Success for 1st time only due to OBB checker)
Orientation Setting : Sensor Landscape
Phone Orientation Setting : Auto Rotate
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Things got a little tricky here.
>While phone in Landscape : Success
>>> Close app while still in Landscape
>>> Set Phone Orientation Setting to Portrait while phone in Landscape
>>> Start app with landscape phone : Success
>>> Repeat "Close And Open app while phone in Landscape" : Success
>>> Once start app while holding phone upright/portrait : Failed
>>> Rotate phone to Landscape and start app : Failed