Netfilter "Flow offload" / HW NAT

Hi we have a problem with enabled flow offload and wireguard on mt7621. I hope you can solve this issue and not a bug in wireguard.

To reproduce the bug enable flow offload and then try to transfer data through wireguard, then thhe router will reboot instantly. i couldn't get log from this. Bu somebody did some debuging and shared a call trace here