Dell S4112T-ON - restarting when device connected to access port

Hi,

We have been trying to setup a pair of S4112T-ON switches which have been running ok until we connect a device to a ethernet access port, at which time it will show an 'Emergency Error' and reboot.

This is only happening on the Access port, our VLT and trunk ports don't have any issue.

The config being used is as follows;

HQ-CORE-01#
HQ-CORE-01#
HQ-CORE-01# show running-configuration
! Version 10.5.2.2
! Last configuration change at Jul 30 01:52:26 2023
!
ip vrf default
!
spanning-tree mode rstp
spanning-tree rstp priority 4096
iscsi enable
iscsi target port 860
iscsi target port 3260
hostname HQ-CORE-01
interface breakout 1/1/13 map 100g-1x
interface breakout 1/1/14 map 100g-1x
interface breakout 1/1/15 map 25g-4x
system-user linuxadmin password ****
username admin password **** role sysadmin priv-lvl 15
aaa authentication login default local
aaa authentication login console local
!
wred me
!
class-map type application class-iscsi
!
--more--policy-map type application policy-iscsi
!
interface vlan1
no shutdown
!
interface vlan40
description Server
no shutdown
ip address 192.168.40.3/24
!
vrrp-group 40
priority 200
virtual-address 192.168.40.2
!
interface vlan100
no shutdown
ip address 192.168.100.2/24
ip helper-address 192.168.40.28
!
vrrp-group 100
priority 200
virtual-address 192.168.100.1
!
--more--interface vlan110
description Management
no shutdown
ip address 192.168.110.2/24
ip helper-address 192.168.40.28
!
vrrp-group 110
priority 200
virtual-address 192.168.110.1
!
interface vlan120
description ISCSI
no shutdown
ip address 192.168.120.2/24
ip helper-address 192.168.40.28
!
vrrp-group 120
priority 200
virtual-address 192.168.120.1
!
interface vlan130
no shutdown
ip address 192.168.130.2/24
--more-- ip helper-address 192.168.40.28
!
vrrp-group 130
priority 200
virtual-address 192.168.130.1
!
interface vlan140
description Guest
no shutdown
!
interface port-channel1
description "Link to HQ-ACCESS-01"
no shutdown
switchport mode trunk
switchport access vlan 110
switchport trunk allowed vlan 40,100,130,140
vlt-port-channel 1
!
interface port-channel2
description "Link to HQ-ACCESS-02/03"
no shutdown
switchport mode trunk
switchport access vlan 110
--more-- switchport trunk allowed vlan 40,100,130,140
vlt-port-channel 2
!
interface port-channel3
description "Link to HQ-ACCESS-02/03"
no shutdown
switchport mode trunk
switchport access vlan 110
switchport trunk allowed vlan 40,100,130,140
vlt-port-channel 3
!
interface port-channel4
description "PowerStore ISCSI A"
no shutdown
switchport access vlan 120
vlt-port-channel 4
!
interface port-channel5
description "PowerStore ISCSI B"
no shutdown
switchport access vlan 120
vlt-port-channel 5
!
--more--interface mgmt1/1/1
no shutdown
ip address dhcp
ipv6 address autoconfig
!
interface ethernet1/1/1
no shutdown
channel-group 1 mode active
no switchport
flowcontrol receive on
!
interface ethernet1/1/2
no shutdown
channel-group 2 mode active
no switchport
flowcontrol receive on
!
interface ethernet1/1/3
no shutdown
channel-group 3 mode active
no switchport
flowcontrol receive on
!
--more--interface ethernet1/1/4
no shutdown
switchport access vlan 40
flowcontrol receive on
!
interface ethernet1/1/5
no shutdown
switchport access vlan 40
flowcontrol receive on
!
interface ethernet1/1/6
no shutdown
switchport access vlan 40
flowcontrol receive on
!
interface ethernet1/1/7
no shutdown
switchport access vlan 40
flowcontrol receive on
!
interface ethernet1/1/8
no shutdown
switchport access vlan 40
--more-- flowcontrol receive on
!
interface ethernet1/1/9
no shutdown
switchport access vlan 40
flowcontrol receive on
!
interface ethernet1/1/10
no shutdown
switchport access vlan 40
flowcontrol receive on
!
interface ethernet1/1/11
no shutdown
switchport access vlan 40
flowcontrol receive on
!
interface ethernet1/1/12
no shutdown
switchport access vlan 40
flowcontrol receive off
flowcontrol transmit off
!
--more--interface ethernet1/1/13
no shutdown
no switchport
mtu 9216
flowcontrol receive off
flowcontrol transmit off
!
interface ethernet1/1/14
no shutdown
no switchport
mtu 9216
flowcontrol receive off
flowcontrol transmit off
!
interface ethernet1/1/15:1
no shutdown
channel-group 4 mode active
no switchport
flowcontrol receive on
!
interface ethernet1/1/15:2
no shutdown
channel-group 5 mode active
--more-- no switchport
flowcontrol receive on
!
interface ethernet1/1/15:3
no shutdown
switchport access vlan 1
flowcontrol receive on
!
interface ethernet1/1/15:4
no shutdown
switchport access vlan 1
flowcontrol receive on
!
vlt-domain 1
backup destination 192.168.110.3
discovery-interface ethernet1/1/13-1/1/14
peer-routing
primary-priority 4096
vlt-mac f0:d4:e2:96:65:71
!
snmp-server contact "Contact Support"

Thanks in advance for any assistance.