Landscape disappears after a frame when level is streamed on iPhone. 4.15

I’ve asked this on AnswerHub also.

Basically I’m running a landscape on an iPhone5. This worked back on 4.14 but not on 4.15. It is streamed as a sublevel and you see the components stream in for a frame then disappear - iphone only. If I launch with the landscape level as the default level it appears correctly.

Does anyone know if there is a workaround to this?