INNOVUS: connect internal power nets between hard macros

I have a design with two hard macros, where one of the macros creates internal supply voltages for the other. In the synthesized netlist, the respective pins (e.g. VQQ) are connected to common nets. In the place&route script I initialize the nets as power nets:

set_db init_power_nets "w_VQQ"

During floorplanning, I add stripes on various layers and nets and run route_special:

add_stripes \
    -direction horizontal \
    -width 2.5 \
    -spacing 1 \
    -nets {w_VQQ} \
    -set_to_set_distance 5

route_special \
    -nets {w_VQQ} \
    -connect { blockPin } \
    -block_pin all \
    -block_pin_target {stripe block_pin } \
    -allow_layer_change 1

I can see that they correctly connect to the global power nets in the macros. However, the local/internal nets are not being touched. I get the following warning:

**WARN: (IMPSR-1254): Unable to connect the specified objects, since block pins of the w_VQQ net were not found in the design. Check netlist or change the parameter value to include block pins in the design.

I don't understand this warning. I checked the netlist, the net is definitely there with that name. However, the name of the pins is different, it is simply VQQ (without w_).
Additionally, I'm unsure what the second part of the message means. Which parameter value needs changing and why are the block pins not included in the design?

I'm using Innovus (Common UI) 21.17, any help is appreciated.

Kind regards,
Patrick