WINDSHIELD DEICE Pneumatic outlet not linked to WINDSHIELD DEICE SWITCH

Version: 1.3.23

Frequency: Consistently

Severity: Low

Marketplace package name: N/A

Context: When editing

Similar MSFS 2020 issue: N/A

Bug description:
WINDSHIELD DEICE Pneumatic outlet not linked to WINDSHIELD DEICE SWITCH

Repro steps:
I created a simple EX1 pneumatic system, where:

  • Left engine bleed feeds the windshield deice Type OUTLET.
  • Right engine bleed feeds hot air into the cabin
    (valves regulate airflow)

When looking at the ECS/Pneumatics debug window, the WINDSHIELD DEICE outlet is always OFF (I can manually turn it on).
Is there a Key Event to turn ON the WINDSHIELD DEICE outlet?
the windshield deice switch seems disconnected from it. Controlling this switch has no impact on the debug page.
Other code snippets are happily managing the valves …
The whole idea is that a control lever regulates the windshield deice. The lever successfully controls the valve, and flicks the windshield deice switch ON when position is non-zero. the Simvar Watcher tells me the switch is being positively controlled, and pneumatics debug shows me the correct valve is responding to lever control. The outlet remains closed.

[PNEUMATIC_SYSTEM_EX1]
Version = 1
AreasMinTemperature = 0
AreasMaxTemperature = 40
AreasMaxTemperatureInput = 40
Engine.1 = Name:LeftEngine #Index:1 #BleedTemperaturesCurve:1 #Outputflow:0.1
Engine.2 = Name:RightEngine #Index:2 #BleedTemperaturesCurve:1 #Outputflow:0.4
RamAir.1 = Name:RamAir #Surface:0.1
Outlet.1 = Name:WindshieldDeice #Type:WindshieldDeice
Curve.1 = 0:10,55:20,100:40
Curve.2 = 0:10,55:30,100:100
Valve.1    = Name:VRam_L	#Circuit:1	#Type:Generic	#OpeningTime:0.1
Valve.2    = Name:VRam_R	#Circuit:2	#Type:Generic	#OpeningTime:0.1
Valve.3    = Name:VFlow_L	#Circuit:3	#Type:HotAir	#OpeningTime:0.1
Valve.4    = Name:VFlow_R	#Circuit:4	#Type:HotAir	#OpeningTime:0.1
Area.1     = Name:Cabin		#Volume:2	#AmbientBleedStaticFlow: 5	#OpeningNames:IP_CANOPY
Line.1 = Name:LEng	#Source:LeftEngine	#Destination:Cabin #Valves:VRam_L,VFlow_L #MaxFlow:0.05
Line.2 = Name:Reng	#Source:RightEngine	#Destination:WindshieldDeice #Valves:VRam_R,VFlow_R
Line.3 = Name:Ram	#Source:RamAir		#Destination:Cabin