
I can't seem to find where I can default the Timeline to sort from newer to older. See attached screenshot.

Hi VANTAGE,
You can change it as following steps:
1.Sign into Power Apps, and then go to the Dataverse section.
2.Select Tables, open the table you want, and then select the Forms area.
3.Open the form where you want to add or configure a timeline.
4.In the form designer, select Components from the left navigation, and then scroll down to the Timeline component on the left side. Drag and drop it into a section on the form.
In Advanced section,the Sort order default setting controls the order of how all data is sorted on the timeline,setting for this setting is set to Descending.
Save&Publish.