for the report "Velocity Trend : Estimate delivered or planned by Sprint" when you select a Project /planning level in the filter, and extract the report for "All team", you have data coming from other Project in the same time frame that use the same schedule.

that lead to an report without value for monitoring a Project /planning level withing a values stream that have multiple SAFE train that share the same sprint schedule. as story for team not assigned to that train are taken in account under "other project"

it would bring value for the train management to have a filter that restraint the report to include only team that have stories in the planning level to be taken in account for data coming from "other planning level"