5.3.22 When the value of a plug-in property includes surrogate pair characters or control characters
If the value of a plug-in property contains surrogate pair characters or control characters (excluding line breaks and tab characters) at the point when a step is paused during debugging, these characters do not appear on screen. When you resume the step, a value with the surrogate pair characters and control characters (excluding line breaks and tab characters) omitted is set as the value of the plug-in property.
When the break setting of the debug task is Do Not Break, the surrogate pair characters and control characters (excluding line breaks and tab characters) in property values do not appear on screen. However, the value of the plug-in property retains these characters.