The "Maximize" option for charts and tables seems to work only for dashboards based on drag-and-drop and/or fixed-layout.
Whenever a grid layout, row layout or column layout is used the chart or table disappears after hitting "Maximize".
Please untick "Automatic Sizing" when creating the dashboard and its views.
Foglight is working as designed, but the feature will be reviewed.
An enhancement request has been created for it: FGLUI-10450