You chose Responsive in your Project Properties, a good thing:
But you set a fixed number of px for your Arrangement Heights:
That has the effect of cutting off the text that is displayed.
Use percentages instead, and follow Responsive Design principles.
from FAQ Section: Screens
You can use scrollable screens or vertical arrangements if you can't fit it all, or just mark them all invisible until needed.
This is how you set the List Picker to show the selection when closed:
