Thank you Phaedrux. Homing the z axis now works perfectly.....Why aren't these settings correctly added when running the config?

I've removed G92 from both Homez and homeall. Probe still wont deploy prior to bed moving up?

link to vid showing issue..https://youtu.be/6YenXoKvd_w

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v2 on Fri Apr 12 2019 09:17:11 GMT+1000 (Australian Eastern Standard Time)
G91 ; relative positioning
G1 Z2 F6000 S2 ; lift Z relative to current position
G1 S1 X-235 Y-230 F3000 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 X5 Y5 F6000 ; go back a few mm
G1 S1 X-235 Y-230 F360 ; move slowly to X and Y axis endstops once more (second pass)
G1 S1 Z-305 F3000 ; move Z down stopping at the endstop
G90 ; absolute positioning
;G92 Z0 ; set Z to axis minimum (you may want to adjust this)

; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 S2 Z2 F100 ; lift Z relative to current position
;G90 ; absolute positioning

Hope someone can help with this issue....

I have an Ender 5 with a genuine v2.2 BlTouch that refuses to deploy when I home. I just replaced the Creality (BlTouch working fine) board with a Duet Maestro. When I click home all, the x and y axis home as normal, the bed moves up but the probe will not deploy.
On power up the probe will do a self test with no error. I can also send M401 and M402 commands successfully.

I'm quite new to the RepRap firmware so any help would be greatly appreciated.

Thanks,

Phill

Config.g
; Configuration file for Duet Maestro (firmware version 1.21)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2 on Fri Apr 12 2019 09:17:10 GMT+1000 (Australian Eastern Standard Time)

; General preferences
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves

; Network
M550 P"Phill's Ender 5 Duet" ; Set machine name
M552 P0.0.0.0 S1 ; Enable network and acquire dynamic address via DHCP
M586 P0 S1 ; Enable HTTP
M586 P1 S0 ; Disable FTP
M586 P2 S0 ; Disable Telnet

; Drives
M569 P0 S1 ; Drive 0 goes forwards
M569 P1 S1 ; Drive 1 goes forwards
M569 P2 S0 ; Drive 2 goes backwards
M569 P3 S1 ; Drive 3 goes forwards
M350 X32 Y32 Z32 E64 I1 ; Configure microstepping with interpolation
M92 X160.00 Y160.00 Z800.00 E407.44 ; Set steps per mm
M566 X900.00 Y900.00 Z180.00 E120.00 ; Set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z1200.00 E1200.00 ; Set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z100.00 E250.00 ; Set accelerations (mm/s^2)
M906 X800.00 Y800.00 Z800.00 E800.00 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1 ; Set axis minima
M208 X230 Y225 Z300 S0 ; Set axis maxima

; Endstops
M574 X1 Y1 Z1 S1 ; Set active high endstops

; Z-Probe
M574 Z1 S2 ; Set endstops controlled by probe
M558 P9 H2 F120 T6000 ; Set Z probe type to bltouch and the dive height + speeds
G31 P25 X-44 Y-15 Z2.5 ; Set Z probe trigger value, offset and trigger height
M557 X15:6 Y15:195 S20 ; Define mesh grid

; Heaters
M307 H0 B0 S1.00 ; Disable bang-bang mode for the bed heater and set PWM limit
M305 P0 T100000 B4138 R2200 ; Set thermistor + ADC parameters for heater 0
M143 H0 S120 ; Set temperature limit for heater 0 to 120C
M305 P1 T100000 B4138 R2200 ; Set thermistor + ADC parameters for heater 1
M143 H1 S280 ; Set temperature limit for heater 1 to 280C

; Fans
M106 P0 S0.65 I0 F20 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S0.65 I0 F20 H-1 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P2 S0.85 I0 F5000 H1 T100 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on

; Tools
M563 P0 D0 H1 ; Define tool 0
G10 P0 X0 Y0 Z0 ; Set tool 0 axis offsets
G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C

; Automatic saving after power loss is not enabled

; Custom settings

Deployprobe.g
; deployprobe.g
; called to deploy a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v2 on Fri Apr 12 2019 09:17:11 GMT+1000 (Australian Eastern Standard Time)
M280 P64 S10

Retractprobe.g
; retractprobe.g
; called to retract a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v2 on Fri Apr 12 2019 09:17:11 GMT+1000 (Australian Eastern Standard Time)
M280 P64 S90

Homez.g
; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v2 on Fri Apr 12 2019 09:17:12 GMT+1000 (Australian Eastern Standard Time)
G91 ; relative positioning
G1 Z2 F6000 S2 ; lift Z relative to current position
G90 ; absolute positioning
G1 S1 Z-305 F3000 ; move Z down until the endstop is triggered
G92 Z0 ; set Z position to axis minimum (you may want to adjust this)
G30 ; home Z by probing the bed

; Uncomment the following lines to lift Z after probing
G91 ; relative positioning
G1 S2 Z2 F100 ; lift Z relative to current position
G90 ; absolute positioning