|-(20)-[UIInputSetContainerView constraint breaks when call-in status bar gets visible [duplicate]

Answer 1

This is clearly an Apple bug. My guess is that they have an errant constraint that holds the status bars height at 20 px but is broken when the call bar grows. This doesn't break or affect the app so it can safely be ignored for now. But an Apple Radar should be filled.

Answer 2

Looks like it is an Apple bug. You can verify that it happens on a totally empty template project:

• Create new single view project
• Run on iPhone simulator
• press Cmd-Y to toggle the status-bar

You'll see the constraint break.

Radar is the way to go I would say.