user is not able access learning task under a journey

Summary:

Hi,

We have a onboarding journey and under that we have 4 learning task which redirect to some specialization.

This journey should automatically assigned to user on the joining day. Now journey is getting assigned automatically to the user but they not able to access the learning task.

Me→ Journey→ onboarding journey→ learning task

Issue: They are getting message' You don't have access to this learning'. But if we assign the same specialization from learning. they can able to access. Me→ My learning

Expectation: They should access the learning task from journey itself.

PS: This is working fine in lower pod. But in the production , we are facing this issue.