Happened in both Windows/Mac on built 3.0.5 (which both built with wx 4.2.2) ``` An error occurred in the program: AttributeError: 'FigureCanvasWxAgg' object has no attribute 'set_window_title' Traceback (most recent call last): File "cpa/classifier.py", line 1460, in OnEvaluation File "cpa/generalclassifier.py", line 487, in ConfusionMatrix File "cpa/generalclassifier.py", line 444, in plot_confusion_matrix ```