Just sent a ticket concerning this but wondering if anybody experienced this also.
I have this problem occuring constantly. I'm updating my plans and changing the model name to @project_model. When I do a copy and paste for the model name, which is in Algerian style, my live schedules such as the electrical changes to Algerian also instead of Arial Narrow.
Don't know if it's because the Algerian lettering style is not part of Softplans standard lettering but even if, it should not change other settings