My gantt chart task schedule timelines do not appear when the gantt widget is initialized. (see attached Screenshot 1). I've set the default selected view to day, week, month and year and it is happening across all of them. The timelines do appear once you toggle the view post initialization (see screenshot 2 for reference). Modifying any task start date or end date also fixes the issue. The other task information (title, start, end) all display fine post initialization. Any ideas?