How to make a new line in UITextView in nib/storyboard?

ALT + Enter makes a new line in storyboard

This works, I'm unsure what you are doing differently.

• Drag out a UITextView.
• Double-click it to edit text, place cursor where you want the paragraph break.
• Option-Enter a couple of times to create a blank line & paragraph.

The paragraph shows at runtime. There's also a Text attribute that can be edited in the Attributes inspector.