NOPROP tag not working

Hello,

I am using "NOPROPxxxx" tags in bb-hosts file with multipes entries, even if i use "prefer" tag it is not working.

group-compress  Oracle-AIX 0.0.0.0         -ta92- # noping prefer NOPROPYELLOW=* NOPROPPURPLE=* NOPROPACK=*

Do you have an idea ?

Regards,

Fred.