Mass-assigned Journey auto-completes for all employees once one employee is marked as complete?

Summary:

Hello,

I am testing mass-assigning Journeys to a group of employees. During this testing I noticed that if one employee completes their Journey, the Journey will mark as complete for all employees that were assigned at the same time.

Steps to reproduce the issue:

1. HR admin navigates to My Client Groups>Journeys>Explore>select Journey>Assign>select multiple employee names>Assign
2. HR admin sees from Activity tab that the Journey is assigned to 4 employees
3. 1 Test employee completes their assigned Journey
4. HR admin navigates to Activity tab and sees that Journey is marked as complete for all 4 employees (even though the other 3 employees did not complete)