Nested criteria not open as expected

[gchi25]

What's expected

Criteria Applicant date of birth
[x] Has child
Child Dependency Option

=18years
Set Applicant date of birth has child criteria.
When users input Applicant date of birth >=18years, for example 1960-1-1, its child criteria should open.

What happened

The Applicant date of birth child criteria is not opening as expected.

In DEV site,
Criteria Applicant date of birth
[x] Has child
Child Dependency Option

=18years

In life event form "disability", Applicate data of birth has children.

Navigate to /benefit-finder/api/life-event/disability, the JSON data has nested criteria.

Navigate to /benefit-finder/disability/about-the-applicant, the nest criteria did not open as expected.

How to replicate

This happens in Benefit Finder DEV site.