Vision plan was not eligible even after enrolled in contingent Medical and Dental plan

Pre - requisite - 1.Vision Plan
2.Contingent Eligibility Rule - For Medical Benefit type
3.Additional Eligibility - Enrolled into Dental

Step:-
1.Login with EE credential
2.OE start
3.Navigate to Enroll Now page
4.Enrolled into Medical and Dental

Actual - Vision plan was not eligible for EE

Expected - Vision plan should get enable