Document appearing too tall in Hype Reflect (using flexible layouts)

Hello, need help,
have made a small application in hype.
Format iPhone6. Now I have tested it on Hype Refect,
the width is true but the amount is too long.
I do not know what I have set wrong hype.

Can someone help me? Thanks

Here a link to Hype File:
www.scarf28.de/xdk/new/test22.hype.zip

View about Reflect:

set the height of the scene to responsible too.
wrapper:

this’ll fit exact to any device with same ratio …

btw. what’s the reason for this enormus scenesize¿ (750x1334px)

Thank you for your quick response.
I will test it equal .

thank you