Thanks for the report. I'll try to reproduce this during the weekend.
I found one bug of profilematic. Version: v1.6.1 Phone: N9. I set two rules, one is set to Silent when 08:30-08:31 Monday to Friday, another one is set to Ringing when 17:00-17:01 Monday to Friday. These two rules work well from Monday to Friday. But after weekend, it will not work on next Monday. I need to deactive the rules and atctive them again. then it works well. The bug is there for long time, and I couldn't find any change in every version. Thanks.