I've shared a hosted feature layer by itself and within a Map from ArcGIS PRO to ArcGIS Online. The layer shows up in my content, and when I look at the item details there's a time section with the information on interval, etc. But when I open either the map or just the layer in Map Viewer, there is no time slider, or option to add one. In WebAppBuilder, the time widget says that there are no time-enabled layers to display. Am I missing a step?