Hi, thanks for the query.
Right click the task history and select details. Can be achieved by double clicking also. Top grid will list the devices with target specific execution details in bottom window.
Thanks for providing more information.
Package download is a system task. Once that succeeds, apply tasks are initiated on targets.
Here are different cases for system update:
1. If the download fails due to some reason, you won't see targets in the details as those were not created at all because of download failure.
2. If download is successful, details for each target will be available with respective success or failure.
3. If download is successful, target details will not be available until triggered on schedule (in case of pending tasks).