Open Radar

 
When the extended status bar get invoked UIVisualEffectViews throw a constraint error.
This happens if the visual effect view was created in IB or in code.

2016-01-30 14:11:47.258 barweight[4235:2260710] Unable to simultaneously satisfy constraints.
	Probably at least one of the constraints in the following list is one you don't want. 
	Try this: 
		(1) look at each constraint and try to figure out which you don't expect; 
		(2) find the code that added the unwanted constraint or constraints and fix it. 
(
    "<NSLayoutConstraint:0x147ef8e80 V:|-(20)-[UIInputSetContainerView:0x147e9dbe0]   (Names: '|':UITextEffectsWindow:0x147d195f0 )>",
    "<NSLayoutConstraint:0x147d87170 'UIInputWindowController-top' V:|-(0)-[UIInputSetContainerView:0x147e9dbe0]   (Names: '|':UITextEffectsWindow:0x147d195f0 )>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x147ef8e80 V:|-(20)-[UIInputSetContainerView:0x147e9dbe0]   (Names: '|':UITextEffectsWindow:0x147d195f0 )>

Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful.