The rules of each type are processed from top to bottom (internally in the iptables chains). The first rule that matches (where source, destination and all other settings equal with these in the packet that is currently processed) is executed and all rules after that are not evaluated any more.
You can use the arrows to re-order rules of the same type or define a position when you create new rules.
I Found !!
It’s just a bug.
I have one host removed in the host list, but still visible in the host group with mention ‘deleted’
I recreate the host remove from the host group, and remove the host.
apply changes and it’s work this is working again.