Kernel panic when unplugging WAN network interface

[ubi_au]

Same situation like Stefano, with a Deciso A10 board with OPNsense 19.1.1-amd64 and 18.7 (tested with 3 different firewalls), DHCP WAN, 2 OPT, lan and zero-tier, and randonly firewall crash with Fatal trap 12: page fault while in kernel mode...  igb[number]:que...
a real frustrating situation! please, someone, have a hint?

[newsense]

Interface - Settings

Make sure the three Hardware settings, CRC, LRO and TSO are checked.

Save and reboot

[ubi_au]

I tried with and without the  CRC, LRO and TSO checked and system was crash, for the moment without DHCP on wan, I' ve no experienced other crash. seem strange. I'm stay and observe ;-)