Maybe Bug: Print started with cold hotend

[dgrat]

I noticed at least one time with firmware 3.4 that a print started with cold hotend.
So the heating failed for some reason and then the print started.
This happened after starting a print after breaking an old one.

; Configuration file for Duet WiFi (firmware version 1.21)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2.1.4 on Mon Dec 09 2019 20:31:57 GMT+0100 (Mitteleuropäische Normalzeit)

; General preferences
G90                                     ; send absolute coordinates...
M83                                     ; ...but relative extruder moves
M550 P"Ender"                           ; set printer name

; Panel Due
M575 P1 S1 B57600 

M667 S0                                 ; select Cartesian mode

; Network
M552 S1                                 ; enable network
M586 P0 S1                              ; enable HTTP
M586 P1 S0                              ; disable FTP
M586 P2 S0                              ; disable Telnet

; Drives
M569 P0 S1                              ; physical drive 0 goes forwards
M569 P1 S1                              ; physical drive 1 goes forwards
M569 P2 S0                              ; physical drive 2 goes forwards
M569 P3 S1                              ; physical drive 3 goes forwards
M584 X0 Y1 Z2 E3                        ; set drive mapping
M350 X16 Y16 Z16 E16 I1                 ; configure microstepping with interpolation
M92 X80 Y80 Z3200 E830                  ; set steps per mm
M566 X1200 Y1200 Z120 E3000             ; set maximum instantaneous speed changes (mm/min)
M203 X12000 Y12000 Z600 E450            ; set maximum speeds (mm/min)
M201 X1200 Y1200 Z120 E3000             ; set accelerations (mm/s^2)
M906 X1000 Y1000 Z800 E630 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 X225 Y225 Z220 S0                  ; set axis maxima

; Endstops
M574 X1 S1 P"xstop"                        ; Set active high and disabled endstops
M574 Y1 S1 P"ystop"                        ; Set active high and disabled endstops
M574 Z2 S1 P"zstop"                        ; Set active high and disabled endstops

; Disable heaters H3-H7 to free up pins
M950 H3 C"nil"
M950 H4 C"nil"
M950 H5 C"nil"
M950 H6 C"nil"
M950 H7 C"nil"

; Z-Probe
M950 S0 C"exp.heater3"                  ; create servo pin 0 for BLTouch
M558 P9 C"^zprobe.in" H8 F100 T6000     ; Set Z probe type to bltouch and the dive height + speeds
G31 P500 X-25.5 Y37 Z1.95               ; Set Z probe trigger value, offset and trigger height Z / before trigger: 1.7
M557 X40:220 Y00:180 S60                ; Define mesh grid

; Heaters
M308 S0 P"bed_temp" Y"thermistor" T100000 B3950 		; define bed temperature sensor
M950 H0 C"bed_heat" T0 			        ; heater 0 uses the bed_heat pin, sensor 0
M143 H0 S120                            ; Set temperature limit for heater 0 to 120C
M307 H0 S1.00 V23.9
M140 H0

M308 S1 P"e0_temp" Y"pt1000"
M950 H1 C"e0_heat" T1 			        ; heater 1 uses the e0_heat pin and sensor 1
M143 H1 S265                                ; Set temperature limit for heater 1 to 240C
M307 H1 A271.1 C122.4 D24.0 S0.25 V24 B0    ; limit the hotend heater to 25% power

; Fans
M950 F0 C"fan0" Q500
M106 P0 S0.0 I0 H-1 C"Print Fan"       	; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off

M950 F1 C"fan1" Q500
M106 P1 T50 H1 C"Hotend Fan"            ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on

M950 F2 C"fan2" Q500
M106 P2 T50 H1 C"Case Fan"              ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on

; Tools
M563 P0 D0 H1 F0                        ; 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

; enable: config-override.g
M501 

[A Former User]

This post is deleted!

[oliof]

you may need to select the Tool T0 again after interrupting a print so it's selected at start of a new print.

[dgrat]

@arnold_r_clark
Cura 4.13

[dgrat]

@oliof
I'll check that