The right part of the Y letter is drawn on the left side (-> letter wrap).
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
Version 5.10.
Because the text is in Italic, vtkTextActor fails to pick the correct font size for a given area to draw in. It wrongly picks a width too narrow, so when it renders the letter as a texture within a (too narrow) area, the texture wraps. You might want to investigate within vtkTextActor (especially vtkTextActor::ComputeScaledFont) and aggregated classes.
For information, vtkAxesActor uses vtkCaptionActor2D that internally uses a vtkTextActor with a CaptionTextProperty text property that is bold,italic,arial,with shadows.