Return span randomly in custom component

I have custom component and on trait change wanted to updated html but randomly it returned span/textnode in trait change function insted of html element. Below is html generated by component and on title change want to updated h4 element.

updateTitle : function updateTitle() {
                    var title = this.get('title');
                    var linkModel = this.get("components").at(0);
                    if (linkModel) {
                        var titleContainer = linkModel.get("components").at(3);
                        if (titleContainer) {
                            var h4 = titleContainer.get("components").at(0);
                            if (h4) {
                                h4.set("content", title);
                            }
                        }
                        linkModel.attributes.attributes["aria-label"] = title;
                        linkModel.attributes.attributes["title"] = title;
                    }
                    this.set("data-title", title);
                    if (this.get('isCreatePage') && this.changed && this.changed.title) {
                        this.set('isPageCreated', false);
                        this.set('bespokePageUrl', '');
                        this.updateIsCreatePage();
                    }
                }

• linkModel.get("components").at(0) returns "div.programme-description" correctly
• linkModel.get("components").at(1) returns "span" not sure from where it is coming
• linkModel.get("components").at(2) returns "span" not sure from where it is coming
• linkModel.get("components").at(3) returns "img.programme-content-image" correctly
• linkModel.get("components").at(4) return "div.programme-play-button-hidden" correctly
• linkModel.get("components").at(5) return "div.programme-title" correctly

here not sure from where linkModel.get("components").at(1) & linkModel.get("components").at(2) "span" are returned and they are returned randomly so not sure what is happing and due to it h4 title is not updated as index of item changes.