"Add More Participants" Button Saves Silently With No Record Created in Program Management Module (PMM)

Symptoms:

• The "Add More Participants" button opens its modal normally.
• The user adds one or more student records and clicks Save.
• The modal closes (or appears to do nothing). No Student Record is created, and no error is displayed on screen.
• Existing Student Records created through other paths (data import, manual entry) are unaffected, because those paths populated the custom field.

Root-cause chain:

1. The "Add More Participants" button runs a packaged Lightning component from the Program Management Module that inserts Student Record rows.
2. A custom lookup field was added to the Student Record object in the org (in this case Course__c, a lookup to Program) and was set to field-level Required ("Always require a value in this field in order to save a record").
3. The packaged component has no awareness of the org-specific custom field, so it never sets a value for it.
4. Each Student Record insert fails the required-field validation at save time.
5. The packaged code does not surface that failure to the UI, so the modal closes with no record and no visible error — a silent Save.

Note: this is org-specific custom configuration interacting with packaged code, not a defect in the managed package itself. A validation rule that enforces the same field at save time reproduces the identical silent failure, for the same reason.