Container & iBGP issue may caused by "firewall global-options state-policy invalid" setting?

General info.

Item Detail
Router OS VyOS 1.5.0
DNS Resolver mosDNS v5.3.4
Container Mode allow-host-networks (host network mode)
LAN Interface eth3 (192.168.1.8/24)
WAN Interface pppoe0
show version
Version:          VyOS 1.5.0
Release train:    circinus
Release flavor:   generic

Built by:         VyOS Inc.
Built on:         Mon 30 Mar 2026 18:57 UTC
Build UUID:       ca4fe7cc-97f3-4c13-9882-75fb09302044
Build commit ID:  cb47cdb72c6d08

Architecture:     x86_64
Boot via:         installed image
System type:      bare metal

mosDNS v5.3.4 is a container that providing DNS service.

  • Same configuration as v1.4.4 and works on v1.5.0
  • Container started and works as expected.

What reason could be caused 403 error when sumitting a topic which pasted markdown format text even if rendering is correct?