I am opening a second component and passing an attribute using the pageReference.state.  I can see the attribute is populated when I do a console.log.  However, the following lightning:datatable is not displaying any of the groupstructure attributes values.  Here is my component:
 

<aura:component implements="lightning:isUrlAddressable" access="global" >
    
    <!-- handlers-->
    <aura:handler name="init" value="{! this }" action="{! c.init }"/>

    
	<!-- Main attribute uses to display all of the group structures as PDF -->
    <aura:attribute name="groupstructures" type="Group_Structure__c[]"/>
    <aura:attribute name="columns" type="List"/>
    
    <!--Attributes for Sorting table -->
    <aura:attribute name="sortedBy"
                type="String" />
	<aura:attribute name="sortedDirection"
                type="Boolean"
                default="true" 
                    />

    <!-- Button to print PDF -->
    <ui:button label="Print"  press="{!c.PrintTable}"/>
    <!-- the container element determine the height of the datatable -->
    
    <div style="height: 300px">
        <lightning:datatable aura:id="gstable"
                
                data="{! v.groupstructures }"
                columns="{! v.columns }"
                sortedBy="{!v.sortedBy}"
            	sortedDirection="{!v.sortedDirection}"
            	onsort="{!c.updateColumnSorting}"
            	hideCheckboxColumn="true"            />
    </div>

</aura:component>

Here is my controller:
 

({
	init: function (cmp, event, helper) {
        
        //set the groupstructures attribute that is being passed via page reference need the next two lines of code
        var pageReference = cmp.get("v.pageReference");
	    cmp.set("v.groupstructures", pageReference.state.groupstructures);

    cmp.set('v.columns', [
            {label: 'Status', fieldName: 'Status__c', type: 'text', sortable: true},
            {label: 'Funding Type', fieldName: 'Funding_Type__c', type: 'text', sortable: true},
            {label: 'Group Number', fieldName: 'Group_Number__c', type: 'text', sortable: true},
        	{label: 'Section Code', fieldName: 'Section_Code__c', type: 'text', sortable: true},
        	{label: 'Package Code', fieldName: 'Package_Code__c', type: 'text', sortable: true},
            {label: 'Effectve Date', fieldName: 'Effective_Date__c', type: 'text', sortable: true},
        	{label: 'End Date', fieldName: 'End_Date__c', type: 'text', sortable: true},
        	{label: 'Health_Product', fieldName: 'Health_Product__c', type: 'text', sortable: true},
        	{label: 'Prescription?', fieldName: 'Prescription__c', type: 'text', sortable: true},
        	{label: 'Dental?', fieldName: 'Dental__c', type: 'text', sortable: true},
        	{label: 'Vision?', fieldName: 'Vision__c', type: 'text', sortable: true},
        	{label: 'CDH Status', fieldName: 'CDH_Status__c', type: 'text', sortable: true},
        	{label: 'Coverage Categories', fieldName: 'Coverage_Categories__c', type: 'text'},
        	{label: 'Prefix', fieldName: 'Prefix__c', type: 'text', sortable: true},
        	{label: 'Description', fieldName: 'Description__c', type: 'text', sortable: true}

        ]);
		console.log("### here is the groupstructures ???" + JSON.stringify(cmp.get("v.groupstructures")));
    },
        
 updateColumnSorting: function(component, event, helper) {
    var fieldName = event.getParam('fieldName');
    var sortDirection = event.getParam('sortDirection');
     // assign the latest attribute with the sorted column fieldName and sorted direction
    component.set("v.sortedBy", event.getParam("fieldName"));
    component.set("v.sortedDirection", event.getParam("sortDirection"));
    helper.sortData(component, fieldName, sortDirection);
    },
        
    PrintTable : function(component, event, helper) {
    var url = location.origin + '/apex/GroupStructureListPrint'
        ; 
    window.open(url, '_self');
        console.log("### Im in the PrintPageAction");
	},
    
})

Any help would be greatly appreciated!!! thanks!!

Fred