snmp driver not working on Jammy

After disabling Ubuntu Focal, and upgrading to Jammy, it appears iPXE no longer boots the local disk for snmp jobs:

Working, Ubuntu Focal:

"""
iPPXXEE  11..00..00++ggiitt--2200119900110099..113333ff44cc44--00uubbuunnttuu33..22 -- Open Source Network Boot Firmware -- hhttttpp::////iippxxee..oorrgg

Features: DNS HTTP HTTPS iSCSI NFS TFTP VLAN AoE ELF MBOOT PXE bzImage Menu PXEX
T

Press Ctrl-B for the iPXE command line...                                        
 
net0: 52:54:00:a2:b6:04 using 82540em on 0000:02:01.0 (open)

  [Link:up, TX:0 TXE:0 RX:0 RXE:0]

Configuring (net0 52:54:00:a2:b6:04)...... ok

net0: 10.1.0.50/255.255.255.192 gw 10.1.0.1

net0: fd01:d880:82d9:0:5054:ff:fea2:b604/64 gw fe80::f816:3eff:feed:9484

net0: fe80::5054:ff:fea2:b604/64

net1: fe80::5054:ff:fe9c:7db9/64 (inaccessible)

Next server: 149.202.169.26

Filename: http://149.202.169.26:3928/boot.ipxe

http://149.202.169.26:3928/boot.ipxe... ok

boot.ipxe : 1004 bytes [script]

Attempting to boot from MAC 52-54-00-a2-b6-04

pxelinux.cfg/52-54-00-a2-b6-04... ok

Booting from SAN device 0x80

GRUB Loading stage2..
"""

The last line being the most important, the image has been bios booted.

Not working:

"""
iPXE 1.21.1+git-20220113.fbbdc3926-0ubuntu1 -- Open Source Network Boot Firmware
 -- https://ipxe.org
Features: DNS HTTP HTTPS iSCSI NFS TFTP VLAN AoE ELF MBOOT PXE bzImage Menu PXEX
T

Press Ctrl-B for the iPXE command line...                                         net0: 52:54:00:af:36:d4 using 82540em on 0000:02:01.0 (Ethernet) [open]
  [Link:up, TX:0 TXE:0 RX:0 RXE:0]
Configuring (net0 52:54:00:af:36:d4)...... ok
net0: 10.1.0.14/255.255.255.192 gw 10.1.0.1
net0: fd2d:bbf3:4444:0:5054:ff:feaf:36d4/64 gw fe80::f816:3eff:fe4d:5af3
net0: fe80::5054:ff:feaf:36d4/64
net1: fe80::5054:ff:feae:cbfb/64 (inaccessible)
Next server: 10.208.224.55
Filename: http://10.208.224.55:3928/boot.ipxe
http://10.208.224.55:3928/boot.ipxe... ok
boot.ipxe : 1004 bytes [script]
Attempting to boot from MAC 52-54-00-af-36-d4
pxelinux.cfg/52-54-00-af-36-d4... ok
Booting from SAN device 0x80
Boot from SAN device 0x80 failed: Input/output error (https://ipxe.org/1d852039)

Exiting pxe config to allow boot to continue on next device

No more network devices
"""

It *appears* focal ships https://packages.ubuntu.com/focal/ipxe with 1.0.0+git-20190109.133f4ce

Where as Jammy ships https://packages.ubuntu.com/jammy/ipxe 1.21.1+git-20220113.fbbdc3926

Between the images, both utilize the same configuration, virtio. Both are bios booting. The newer version just can't seem to read from the disk.