Tangent edges line styles issue

I am using Creo Parametric Release 9.0 and Datecode9.0.7.0

When tangent edge line style is being changed to any other than default, using reset button or copying style from another tangent edge will not bring default style (thin continuous line), but it will set it to the line style of contours (wide continuous line) instead. The issue affects how drawing exported to PDF format looks like (line thicknesses).