Idea

When flow items are task executers, they can move themselves between objects by using "Task Executer as Flowitem" for the 'Use Transport' option.

The script behind that option checks if the object is connected to a Network Node, and if it is, attaches the task executer flow item to that network node so that it uses the network. However, this does not work for AGV networks.

I think it would be easy to extend this bit:

if (objectexists(netnode)) {
	reassignnetnode(item, netnode);
}

to make it work with AGV networks as well:

if (objectexists(netnode)) {
	reassignnetnode(item, netnode);
}
else {
	treenode cpconnection = cpconnection(current, "Location", 1);
	if (objectexists(cpconnection)) {
		agvreassigncp(item, cpconnection);
	}
}