Pi2 nft error after upgrade

[BashahBa]

Hi there, I just upgraded my kernel from
linux-rpi-legacy(5.10.92-2) to linux-rpi (6.1.35-4)

All networking interfaces, vlans, bridges, routing, hostapd work fine.
Using the same nftables.conf as the old kernel.

nft -cf nftables.conf
nftables.conf:38:5-12: Error: Could not process rule: Protocol error
ct state invalid drop
^^^^^^^^

When ct rules in the bridge filter are removed there are no errors:
The ct state rules for 'table inet filter' work fine.
All other rules in 'table bridge/inet filter' work fine.

From nftables.conf:

...
table inet filter {
chain input {
type filter hook input priority filter
policy drop
ct state invalid counter drop comment "early drop of invalid
...
}
table bridge filter {
chain forward {
type filter hook forward priority 0; policy accept;
ct state invalid drop
...
}


any thoughts.