Auto number series question about restarts.

For an auto number series such as:

C:<$chapnum><n+>< =0>< =0>< =0>

I have Paragraph Designs: 

title.0, Numbering definition, C:Chapter <$chapnum>< >< =0>< =0 >.

title.1, Numbering definition, C:<$chapnum>-<n+>< >< >. 

title.2, Numbering definition, C:< >< >Section <n+>< >. 

title.3, Numbering definition, C:< >< >< >Subsection <n+>. 

title,4, Numbering definition, C:<$chapnum>-<n+>< >< >. 

Shouldn't a new title.2 restart the numbering for the next title.3?

My Subsection continues to increment with the previous Section's last Subsection number. What am I missing?