daily work schedule with variant

Hi everybody,

I had a daily work schedule and now I copied it with some changes in it and saved with a variant (M). I created a period work schedule and chose daily work schedules with variant in  it and set work schedule rules in next step, at the end when I generate my new work schedule the  but variants are not displayed in the work schedule and the base work schedule without variant is set to calendar.

Does anybody know the problem?

Thank you

Elnoosh