DHCP offer is not detected when running on tagged VLAN interface

[jseifertscionics]

running on the bare (untagged) interface works but with the tagged interface (VLAN ID 3) i get this instead:

% sudo dhcpcd -d --noipv4ll --nogateway enp0s31f6.3 
dhcpcd-10.0.6 starting
chrooting as dhcpcd to /usr/lib/dhcpcd
sandbox: seccomp
spawned manager process on PID 85150
spawned privileged proxy on PID 85151
spawned network proxy on PID 85152
spawned controller proxy on PID 85153
DUID 00:01:00:01:2e:a1:3a:af:90:2e:16:19:f1:16
enp0s31f6.3: executing: /usr/lib/dhcpcd/dhcpcd-run-hooks PREINIT
enp0s31f6.3: executing: /usr/lib/dhcpcd/dhcpcd-run-hooks CARRIER
enp0s31f6.3: IAID ff:00:00:03
enp0s31f6.3: adding address fe80::a444:9e76:4355:c8ae
enp0s31f6.3: pltime infinity, vltime infinity
ipv6_addaddr1: Permission denied
enp0s31f6.3: delaying IPv6 router solicitation for 0.2 seconds
enp0s31f6.3: delaying IPv4 for 0.6 seconds
enp0s31f6.3: soliciting an IPv6 router
enp0s31f6.3: delaying Router Solicitation for LL address
enp0s31f6.3: reading lease: /var/lib/dhcpcd/enp0s31f6.3.lease
enp0s31f6.3: soliciting a DHCP lease
enp0s31f6.3: sending DISCOVER (xid 0xd16f80e8), next in 3.5 seconds
enp0s31f6.3: spawned BPF BOOTP on PID 85156
…
timed out
enp0s31f6.3: executing: /usr/lib/dhcpcd/dhcpcd-run-hooks STOPPED
enp0s31f6.3: BPF BOOTP exited from PID 85156
enp0s31f6.3: control proxy exited from PID 85153
enp0s31f6.3: network proxy exited from PID 85152
dhcpcd exited

with wireshark i can see the DHCP offer from the server so i assume dhcpcd should too.
i can provide a filtered wireshark capture if required.
Kernel: 6.11.0-19-generic #19~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Mon Feb 17 11:51:52 UTC 2 x86_64 x86_64 x86_64 GNU/Linux
The untagged lower interface (enp0s31f6) has working DHCP with a different subnet.

Running dhcpcd without a specified interface results in a normal outcome for the tagged interface:

% sudo dhcpcd --nobackground
dhcpcd-10.0.6 starting
dev: loaded udev
DUID 00:01:00:01:2e:a1:3a:af:90:2e:16:19:f1:16
…
enp0s31f6: IAID 16:19:f1:16
…
enp0s31f6.3: IAID ff:00:00:03
enp0s31f6.3: adding address fe80::a444:9e76:4355:c8ae
ipv6_addaddr1: Permission denied
…
enp0s31f6.3: soliciting an IPv6 router
enp0s31f6.3: soliciting a DHCP lease
enp0s31f6: soliciting an IPv6 router
enp0s31f6: soliciting a DHCP lease
…
enp0s31f6.3: offered 192.168.1.109 from 192.168.1.1
enp0s31f6.3: probing address 192.168.1.109/24
…
Dropped protocol specifier '.dhcp' from 'enp0s31f6.dhcp'. Using 'enp0s31f6' (ifindex=2).
veth177c8db: probing for an IPv4LL address
enp0s31f6.3: leased 192.168.1.109 for 7200 seconds
enp0s31f6.3: adding route to 192.168.1.0/24
enp0s31f6.3: adding default route via 192.168.1.1
Found multiple interfaces (enp0s31f6.3, enp0s31f6) matching with 'enp0s31f6.3.dhcp'. Using 'enp0s31f6.3' (ifindex=24).
…