nrf5144 ANT+ two network can't work at same time

[Fema]

I am using the nrf51422 with softdevice 5144_2.0.1 , I set two network number using the "sd_ant_network_address_set" api , network number 0 for ANT+ cadence/heardrate.. network number 1 for shinamo di2 . I assign di2 channel to network number 1 then i can get the di2 broadcast message and if i assign cadence channel to network number 0 then i can get di2 and cadence message together .

But if i lost the cadence message (eg: uncheck the Bike cadence transmitting box in ANT+ sensor simulator tool) then i also lost the di2 message , if i close the cadence channel then di2 message back .

any comment . thanks

[Fema]

let me explain more specific . I open two network one for ANT+ another for Di2 sensor (Di2 request another network key ). I use SimulANT+ to simulate the heardrate . nrf51422 boot up and open the heard rate channel and Di2 channel and both of them do not paired. If i click the Transmitting box in the SimulANT+ for heardrate i can't get any message from heard rate channel it is not normal. But if i wake up my Di2 device then both Di2 and heard rate channel can receive the message. I don't understand why the heard rate channel can't receive any message while the Di2 channel is opened but not paired . I will upload my project later. thanks