This doesn't address your problem with ML2/LB, but FYI ML2/OVN stateless SG implementation addresses the problem by making sure that filters don't clash and that stateless ACLs are given priority.
This doesn't address your problem with ML2/LB, but FYI ML2/OVN stateless SG implementation addresses the problem by making sure that filters don't clash and that stateless ACLs are given priority.