Journey's task delegation is not happening

Summary:

After enabling Delegation Allowed for the custom Line Manager role and creating the role delegation, the Journey tasks are still not being delegated to the delegated user.

We have followed the steps outlined in the document below:
https://docs.oracle.com/en/cloud/saas/human-resources/fajqa/how-do-i-delegate-access-for-journeys-and-tasks.html

Version (include the version you are using, if applicable):

26B