ViewController controls not visible, but present in document guideline - ios

I am newbie in Xamarin iOS development.
I created a storyboard, added few view controllers in it.
I added some controls in one view controller, ran the code and checked the output on simulator. All worked great.
Now after some time I checked my storyboard design. Now the controls are not visible in view controller(in story board), but they are visible in document guideline(view hierarchy).
please let me know what should I do to solve this issue.
Thanks in advance.

The problem was solved by clicking on the Portrait/Landscape icon two times which changed the device width to "Compact" and height to "Regular" an in 5 seconds the controls were visible in the ViewController

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For the 2nd part of your question I think you want to look into
I think you want to look into Size Classes and Auto Layout
You can make a single view but depending on the size / orientation of the device - you can enable/disable certain components of the view.
You can pin views so that in portrait you have your 1st layout and in a landscape you have your 2nd layout.
With regards to your 1st question - you do have the ability to embed a view inside of another view
I'm not sure if this is what you are looking for - but as far as what apple is pushing I believe size classes is what they "suggest". You can do a lot. The only thing is make sure you turn on the assistant editor into storyboard preview mode it will help a lot.

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I think it's a bug!
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Good luck ;)

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