JavaScript for WordPress › Forums › Gutenberg Development › Duplicate Inspector Controls › Reply To: Duplicate Inspector Controls January 31, 2018 at 3:22 pm #40204 Zac GordonKeymaster I am less familiar with that Boilerplate but I have seen this error before. May have to do with using a unique key for inspector controls. Does the same thing happen when you use the inspector control examples from this course example files?
