playground's preview shows blank screen instead of showing Navigation link button

i have a simple code running on Xcode 15.2 and is showing blank in the liveView

I am expecting to see Hello button in default blue , which navigates me to empty screen when tapped

can someone helpe me why preview is not rendering properly?

thank you so much

this has been solved by expanding screen

Thanks for letting us know.

playground's preview shows blank screen instead of showing Navigation link button
 
 
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