@fcwilt
I do not have a mesh.g but here are all the files I have.
The weirdest thing is this all happens before anything is even homed. Paneldue right away won't connect, and the Z probe is uncontrollable
bed.g
; this script compensates for what the Z offset is
; so if G31 P500 X-30 Y-15 Z1.7 then first probe will be at
; X30 Y20 (when G30 P0 X0 Y5)
M561 ; clear any bed transform
G30 P0 X8 Y20 Z-99999 ; probe near a leadscrew
G30 P1 X263 Y485 Z-99999 ; probe near a leadscrew
G30 P2 X485 Y15 Z-99999 S3 ; probe near a leadscrew and calibrate 3 motors
deployprobe.g
; deployprobe.g
; Called to deploy a physical Z probe
;
M280 P0 S10 ; Deploy the BLTouch pin
homeall.g
; BLTouch
M280 P0 S160 ; Precautionary alarm release
M280 P0 S90 ; Ensure the pin is raised
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 X-625 Y605 F3600 ; move quickly to X and U axis endstops and stop there (first pass)
G1 H1 X-625 F1800 ; move quickly to X and U axis endstops and stop there (first pass)
G1 H1 Y605 F1800 ; move quickly to X and U axis endstops and stop there (first pass)
G1 H2 Y3 X3 F360 ; go back a few mm
G1 H1 X-625 Y605 F360 ; move slowly to X and U axis endstops once more (second pass)
G1 H1 X-625 F360 ; move slowly to X and U axis endstops once more (second pass)
G1 H1 Y605 F360 ; move slowly to X and U axis endstops once more (second pass)
G90 ; absolute positioning
G1 X250 Y250 F10000 ; go to first probe point
G30 ; home Z by probing the bed
G91 ; relative positioning
G1 Z5 F100 ; lift Z relative to current position
G90 ; absolute positioning
homex.g
G91 ; relative positioning
;G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 X-625 F1800 ; move quickly to X axis endstop and stop there (first pass)
G1 H2 X2 Y2 F6000 ; go back a few mm
G1 H1 X-625 F360 ; move slowly to X axis endstop once more (second pass)
;G1 H2 Z-5 F6000 ; lower Z again
G90 ; absolute positioning
homey.g
G91 ; relative positioning
;G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 Y605 F1800 ; move quickly to Y axis endstop and stop there (first pass)
G1 Y-5 F6000 ; go back a few mm
G1 H1 Y605 F360 ; move slowly to Y axis endstop once more (second pass)
;G1 H2 Z-5 F6000 ; lower Z again
G90 ; absolute positioning
homez.g
; BLTouch
M280 P0 S160 ; Precautionary alarm release
M280 P0 S90 ; Ensure the pin is raised
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G90 ; absolute positioning
G1 X250 Y250 F10000 ; go to first probe point
G30 ; home Z by probing the bed
; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning
pause.g
; pause.g
; called when a print from SD card is paused
;
; generated by RepRapFirmware Configuration Tool v3.3.2 on Sun Sep 19 2021 18:36:33 GMT-0400 (Eastern Daylight Time)
M83 ; relative extruder moves
G1 E-10 F3600 ; retract 10mm of filament
G91 ; relative positioning
G1 Z5 F360 ; lift Z by 5mm
G90 ; absolute positioning
G1 X0 Y0 F6000 ; go to X=0 Y=0
resume.g
; resume.g
; called before a print from SD card is resumed
;
; generated by RepRapFirmware Configuration Tool v3.3.2 on Sun Sep 19 2021 18:36:33 GMT-0400 (Eastern Daylight Time)
G1 R1 X0 Y0 Z5 F6000 ; go to 5mm above position of the last print move
G1 R1 X0 Y0 ; go back to the last print move
M83 ; relative extruder moves
G1 E10 F3600 ; extrude 10mm of filament
retractprobe.g
; retractprobe.g
; Called to retract a physical Z probe
;
M280 P0 S90 ; Retract the BLTouch pin