Like the calendar view, timeline view only shows the 1st instance of a multi space request, but if you filter on the other spaces that this event is located at, you cannot see the event at all. Can the timeline view be adjusted to match the settings of the calendar where you can filter on the other spaces and it also shows there?
The timeline view is a great visual tool. It would be even better if it was able to show the true reserved time for each space for requests that contain multiple spaces. Right now, a multi space request only show a single space on the timeline view.