Process Model (Sub processes are not starting)

Question

I have a question regarding the subprocess status shown in the attached screenshot. 
 The subprocesses are displaying the status as "Unattended" instead of "Completed" . I have configured the subprocess node to "Run as whoever designed the process model" in the assignment settings. 
 Could you please help me understand why the subprocesses are still showing as Unattended rather than Completed ? 
 I've attached the screenshot for reference.

Shubham Aware · Answer

Run as designer only controls permissions, not the node type. A subprocess stays Unattended while active and turns Completed only when its instance reaches a valid end node, so yours is likely still running or stuck on an internal node.

Harsha Sharma · Answer

Once the subprocess completes by reaching an end node you should see the status as Completed. Inspect your subprocess instances if they have any errors or is paused at a node or is still in progress!