When updating web / classic galleries the 'Update Web Gallery' never finishes. This occurs with all the templates in the 'Classic Gallery'. I can make changes to things like the Site Title, Collection Title, etc., in a Classic Gallery and those changes will be displayed on the monitor but images included in the gallery are never displayed. I can modify and create other gallery templates with no issue (Grid, Square, and Track) and images are shown appropriately. However, 'Preview In Browser' will work and reflect changes accordingly.