Evaluation not appearing for learners

Summary: Learns not able to view the evaluation after completing the activities.

Content (required): We have created an evaluation and made it Mandatory for Learners to complete the offering with 2 activites. Below are the steps followed:

1) Assigned the offering to learners (at this point we are seeing 0/3, which is good).

2) When the learners login and go the offering the required activities are showing as 3 (which is expected)

3) When the learners complete the first 2 activities, it was supposed to enable the evaluation but in our case the evaluation is not showing (it is completed disappearing) and marking the offering as completed. Not sure where the issue is.