It seems that the default font used in a specific project is not maintained as the default font. Opening another project and changing the default font, then re-opening the 1st project shows the default font for the 2nd project being used instead of the originally assigned font.

This makes sharing projects between two or more people almost impossible to maintain. In SSPro, it is even more troublesome in that text objects appears to be inheriting font characteristics from the default font settings unless they are specifically overridden (or set) within the text object.