3.2RC2 - Hotend faulting but no console message

[jay_s_uk]

One of my heaters is faulting. Usually, there is message stating why (e.g. temperature rising slower than expected), but in this instance, nothing is being displayed.
I only have one tab open for the machine as can be seen in the HTTP sessions

=== Diagnostics ===
RepRapFirmware for Duet 3 MB6HC version 3.2-RC2 running on Duet 3 MB6HC v0.6 or 1.0 (standalone mode)
Board ID: 08DJM-956BA-NA3TJ-6JTD4-3S86S-KV92S
Used output buffers: 1 of 40 (25 max)
=== RTOS ===
Static ram: 149788
Dynamic ram: 94388 of which 120 recycled
Never used RAM 114536, free system stack 128 words
Tasks: NETWORK(ready,189) ETHERNET(blocked,109) HEAT(blocked,271) CanReceiv(blocked,834) CanSender(blocked,348) CanClock(blocked,352) TMC(blocked,19) MAIN(running,1101) IDLE(ready,19)
Owned mutexes:
=== Platform ===
Last reset 00:09:48 ago, cause: software
Last software reset at 2020-12-26 18:41, reason: User, GCodes spinning, available RAM 114652, slot 0
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0044a000 BFAR 0x00000000 SP 0x00000000 Task MAIN Freestk 0 n/a
Error status: 0x00
Aux0 errors 0,0,0
Aux1 errors 0,0,0
MCU temperature: min 41.2, current 41.4, max 41.5
Supply voltage: min 26.7, current 26.8, max 26.9, under voltage events: 0, over voltage events: 0, power good: yes
12V rail voltage: min 12.1, current 12.1, max 12.2, under voltage events: 0
Driver 0: position 33930, standstill, reads 40890, writes 0 timeouts 0, SG min/max 0/140
Driver 1: position -9510, standstill, reads 40890, writes 0 timeouts 0, SG min/max 0/132
Driver 2: position 12561, standstill, reads 40888, writes 2 timeouts 0, SG min/max 43/1023
Driver 3: position 8832, standstill, reads 40890, writes 0 timeouts 0, SG min/max 0/304
Driver 4: position 0, standstill, reads 40890, writes 0 timeouts 0, SG min/max 0/286
Driver 5: position 0, standstill, reads 40890, writes 0 timeouts 0, SG min/max 0/269
Date/time: 2020-12-26 18:51:23
Slowest loop: 4.20ms; fastest: 0.06ms
=== Storage ===
Free file entries: 9
SD card 0 detected, interface speed: 25.0MBytes/sec
SD card longest read time 0.4ms, write time 0.0ms, max retries 0
=== Move ===
DMs created 125, maxWait 0ms, bed compensation in use: mesh, comp offset 0.000
=== MainDDARing ===
Scheduled moves 159, completed moves 159, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== AuxDDARing ===
Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== Heat ===
Bed heaters = 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
Heater 0 is on, I-accum = 0.3
=== GCodes ===
Segments left: 0
Movement lock held by null
HTTP is idle in state(s) 0
Telnet is idle in state(s) 0
File is doing "G1 X211.8 Y150.0 " in state(s) 0
USB is idle in state(s) 0
Aux is idle in state(s) 0
Trigger is idle in state(s) 0
Queue is idle in state(s) 0
LCD is idle in state(s) 0
SBC is idle in state(s) 0
Daemon is idle in state(s) 0
Aux2 is idle in state(s) 0
Autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 4.50ms; fastest: 0.02ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions Telnet(0), 0 sessions
HTTP sessions: 1 of 8
- Ethernet -
State: active
Error counts: 0 0 1 0 0
Socket states: 5 2 2 2 2 0 0 0
=== CAN ===
Messages queued 171, send timeouts 0, received 512, lost 0, longest wait 1ms for reply type 6029, free buffers 48

Why is no console message being displayed?
Duet 3 standalone, everything on RC2