What is the default sort order for the Timeline in the Portfolio Items menu
Release : SAAS
Component : Timeline
The sort order is by Planned Start Date within each project. Beyond that, data is sorted by Object ID which generally follows the Formatted ID in chronological order.
If two items don't follow that sort order, it would be recommended to inspect the planned start date to see if was off by some small amount of time as compared to other work items.
keywords: rally agile central