UPDATE changed code, when it runs it prints out the 3 list names as expected but the While loop always shows the items from the last list, it needs to show items from all the lists.

From the 3 lists I have (one in every subsite) the code outputs the last list items 3 times. It should output List A items, List B items etc

SP.SOD.executeOrDelayUntilScriptLoaded(function () {
    var myCtx = SP.ClientContext.get_current();
    var root = myCtx.get_site().get_rootWeb(); // may need to do this if in a sub site
    var webs = root.get_webs(); // fetch a reference to all the sub webs
    var query = new SP.CamlQuery();
    // only need to fetch the first item returned from each Project list
    //query.set_viewXml('<View Scope="RecursiveAll"><Query></Query><RowLimit>1</RowLimit></View>');
    query.set_viewXml('<View><RowLimit>100</RowLimit></View>');
    var queryItemCollections = [];
    // make sure to load the lists data so we can check
    // if the "Projects" list exists in each site
    myCtx.load(webs, "Include(Id, Lists)");
    myCtx.executeQueryAsync(function () {
        // push new SP.ListItemCollections into an array and tell the ctx to fetch them
        
        //console.log(webs.get_data().length);
        
        for (var i = 0; i < webs.get_data().length; i++) {
            var web = webs.get_data()[i], itms;
            if (checkForProjectsList(web)) {
                itms = webs.get_data()[i].get_lists()
                           .getByTitle("TeamRequests").getItems(query);
                                          
                queryItemCollections.push(itms);
                               
                myCtx.load(itms);
            }
        }
        
        
        myCtx.executeQueryAsync(function () {
               
        
            if (queryItemCollections.length == 0) {
                console.log("collection empty");
            }
            //console.log('len '+queryItemCollections.length);
            var count=0;
            queryItemCollections.forEach(function (item) {
                // do work with individual list items here
                
                var listItemEnumerator = itms.getEnumerator();

                  var listItemInfo = '';
                  while (listItemEnumerator.moveNext()) {
                var oListItem = listItemEnumerator.get_current();
                listItemInfo = oListItem.get_item('_ProjectRef') + '\n+++++++++\nID: ' + oListItem.get_id() + 
                '\nTitle: ' + oListItem.get_item('Title')+'\n-------';
            
                console.log( listItemInfo);
            
                } // end while
             
                 console.log(item.getItemAtIndex(0).get_item("_ProjectRef")); // this show correct lists
                 count++;
                 

            });
        }, genericFailHandler);
    }, genericFailHandler);
    
    
    function checkForProjectsList(web) {
        var lists = web.get_lists().get_data();
        for (var j = 0; j < lists.length; j++) {
            var list = lists[j];
            if (list.get_title() == "TeamRequests") {
                return true;
            }
        }
        return false;
    }
    function genericFailHandler(sender, args) {
        console.log(args.get_message());
    }
}, "SP.js");