When running upf simulation power net is stuck at 0

I have the following upf constructs:

create_power_domain PD_TOP \

         -include_scope

create_power_domain    PD_V1P8_AVDD \

       -elements { A/B }

create_supply_port NET_V1P8_AVDD \

         -direction in \

         -domain PD_TOP

create_supply_port AGND \

         -direction in \

         -domain PD_TOP

create_supply_net AGND \

         -domain PD_TOP

create_supply_net NET_V1P8_AVDD \

         -domain PD_TOP

connect_supply_net NET_V1P8_AVDD \

         -ports { NET_V1P8_AVDD A/B/AVDD_pin }

connect_supply_net AGND \

        -ports { AGND A/B/AGND_pin }

create_supply_set ss_V1P8 \

         -function { power NET_V1P8_AVDD } \

         -function { ground AGND }

associate_supply_set ss_V1P8 \

         -handle PD_V1P8_AVDD.primary

add_power_state PD_V1P8_AVDD.primary \

        -state ON { -supply_expr {power == \

        `{FULL_ON, 1.8} && ground == `{FULL_ON, 0.0}} \

        -simstate NORMAL}

When I read this upf into xrun, the NET_V1P8_AVDD net/port is always stuck at 0, even if I force it in my testbench.

When:

connect_supply_net NET_V1P8_AVDD \

         -ports { NET_V1P8_AVDD A/B/AVDD_pin }

is commented out, I can force NET_V1P8_AVDD to 1.

It seems UPF is forcing this node to 0.  Where and how to overcome it?

Thanks.