Sequence Task issue

Summary:

Hi experts,

we are trying to configure a Journey with three tasks in sequence specified for each person.
So if Person A doesn't complete the task (Access compensation Plan), Person B cannot proceed within the task (Access Compensation Plan 2)

The problem is even though Person A already completed the first task assigned:

Person B is not able to complete the second task as shown below. Does it require for Person B to also complete the first one?

We think it is a problem within the configuration, can you please let us know on how to proceed?

Thank you,
Marlon