I have exactly the same problem, and I can't fix it.
1. In Blender, NLA name is 'Gear_Center', animated as 0-100 extend/retract, 101-200 steering (objects linked each other as needed, but some objects doesn't need steering so this parts animated 0-100 and placed a "dummy" keyframe to 200)
Wheel rotating NLA anim is 'Tire_C_Anim'
2. in aircraft's xml defined animation as follows:
<Component ID="GEARS">
<UseTemplate Name="ASOBO_GEAR_Center_Template">
<ANIM_NAME>Gear_Center</ANIM_NAME>
</UseTemplate>
<UseTemplate Name="ASOBO_GEAR_Left_Template">
<ANIM_NAME>Gear_Left</ANIM_NAME>
</UseTemplate>
<UseTemplate Name="ASOBO_GEAR_Right_Template">
<ANIM_NAME>Gear_Right</ANIM_NAME>
</UseTemplate>
<UseTemplate Name="ASOBO_GEAR_Left_Tire_Template">
<ANIM_NAME>Tire_L_Anim</ANIM_NAME>
<NODE_ID_STILL>TIRE_LEFT_STILL</NODE_ID_STILL>
<NODE_ID_BLURRED>TIRE_LEFT_BLUR</NODE_ID_BLURRED>
</UseTemplate>
<UseTemplate Name="ASOBO_GEAR_Right_Tire_Template">
<ANIM_NAME>Tire_R_Anim</ANIM_NAME>
<NODE_ID_STILL>TIRE_RIGHT_STILL</NODE_ID_STILL>
<NODE_ID_BLURRED>TIRE_RIGHT_BLUR</NODE_ID_BLURRED>
</UseTemplate>
<UseTemplate Name="ASOBO_GEAR_Center_Tire_Template">
<ANIM_NAME>Tire_C_Anim</ANIM_NAME>
<NODE_ID_STILL>TIRE_CENTER_STILL</NODE_ID_STILL>
<NODE_ID_BLURRED>TIRE_CENTER_BLUR</NODE_ID_BLURRED>
</UseTemplate>
</Component>
3. in systems.cfg contain gear properties:
[ELECTRICAL]
bus.1 = Name:LH_Main_BUS
bus.2 = Name:RH_Main_BUS
bus.3 = Connections:bus.1#Name:LH_BUS
bus.4 = Connections:bus.2#Name:RH_BUS
bus.5 = Connections:bus.1, bus.2#Name:Battery_BUS
bus.6 = Connections:bus.2#Name:Avionics_BUS
bus.7 = Connections:bus.1#Name:LH_Eng_BUS
bus.8 = Connections:bus.2#Name:RH_Eng_BUS
battery.1 = Connections:bus.5#Capacity:13.6#Voltage:curve.1#Name:Main_Battery ; Main Battery
alternator.1 = Connections:bus.3#iEng:0#RatedVoltage:28#Load:curve.3#Name:LH_Alternator
alternator.2 = Connections:bus.4#iEng:1#RatedVoltage:28#Load:curve.3#Name:RH_Alternator
curve.1 = 0:21, 0.1:22.5, 0.5:24, 0.9:25, 1:25.4 ; Battery voltage for capacity %
curve.2 = 0:8, 0.1:10.5, 0.5:12, 0.9:12.5, 1:12.8 ; 12V Battery voltage for capacity %
curve.3 = 0.2:0, 0.25:30, .35:65, 0.9:70 ; Load from RPM table 30A at idle speed & 70 at 90%rpm
circuit.1 = Type:CIRCUIT_GENERAL_PANEL:1 #Connections:bus.5# Power:0.5,1,20.0# Name:General_Panel_1 ; General panel
circuit.2 = Type:CIRCUIT_GENERAL_PANEL:2 #Connections:bus.1# Power:0.5,1,20.0# Name:General_Panel_2 ; General panel
circuit.3 = Type:CIRCUIT_STARTER:1 #Connections:bus.2# Power:2000, 3500, 20.0# Name:Starter_1 ; Starter 3500W
circuit.4 = Type:CIRCUIT_STARTER:2 #Connections:bus.2# Power:2000, 3500, 20.0# Name:Starter_2 ; Starter 3500W
circuit.5 = Type:CIRCUIT_FUEL_PUMP:1 #Connections:bus.7, bus.8# Power:35, 48, 20.0# Name:Fuel_Pump ; Fuel pump 24V DC @ 2A
circuit.6 = Type:CIRCUIT_FUEL_PUMP:2 #Connections:bus.7, bus.8# Power:35, 48, 20.0# Name:Fuel_Pump ; Fuel pump 24V DC @ 2A
circuit.7 = Type:CIRCUIT_STANDBY_VACUUM #Connections:bus.2# Power:5,10,20.0# Name:STBY_Vacuum ; stby vacuum
circuit.8 = Type:CIRCUIT_FLAP_MOTOR #Connections:bus.2# Power:200, 240, 20.0# Name:Flaps_Motor ; Flaps motor
circuit.9 = Type:CIRCUIT_FUEL_TRANSFER_PUMP:1 #Connections:bus.1# Power:35, 48, 20.0# Name:Aux_Fuel_Pump_A ; Flaps motor
circuit.10 = Type:CIRCUIT_FUEL_TRANSFER_PUMP:2 #Connections:bus.1# Power:35, 48, 20.0# Name:Aux_Fuel_Pump_B ; Flaps motor
circuit.11 = Type:CIRCUIT_PITOT_HEAT #Connections:bus.1# Power:30, 40, 20.0# Name
itot_Heat ; pitot_heat 40W
circuit.12 = Type:CIRCUIT_PROP_DEICE #Connections:bus.1# Power:30, 40, 20.0# Name
rop_Deice ; deice 40W
circuit.13 = Type:CIRCUIT_GEAR_MOTOR #Connections:bus.1# Power:200, 240, 20.0# Name:Gear_Motor
.
.
.
etc.
4. However inside of Dev mode, the gears defined as "Manual", not electric, not pneumatic etc etc. - just for safe functioning and avoid missing things. But if I set gears to 'Elecrtic' nothing changed, main gears (left and right) animated as should be, and works perfectly, but the nose gear haven't any reaction, no gear retracting anim, no wheel rotating anim.
I tried everything I could, but no luck. Working on this small piece of the whole project almost a week, so I start to giving up...
Additional problem: every time when I click on "Build All" the fuel quantity goes to zero, no matter how many liters I had before...funny, isn't?
Any help or idea much appreciated!