Personalize content does not work for segment via API

Description

Precondition:
Config scope of site is site2
Profile with email site2@episerver.com belongs to site2 scope.

Steps to reproduce:

1. Create a segment by API with the body as below:

 
POST: /api/v1.0/segments/
{
  "Scope": "site2",
  "SegmentManager": "HoangAnhMinh",
  "ProfileQuery": "Info.Email eq site2@episerver.com",
  "AvailableForPersonalization": true,
  "Archived": false,
  "FavoredBy": [
    "string"
  ],
  "Name": "Site2",
  "Description": "Site2"
}

Observed: Segment is created successfully.

{
    "SegmentId": "d5cdf87e-9dca-4cd5-93fb-0feab2602810",
    "Scope": "site2",
    "SegmentManager": "HoangAnhMinh",
    "ProfileQuery": "Info.Email eq site2@episerver.com",
    "AvailableForPersonalization": true,
    "Archived": false,
    "FavoredBy": [
        "string"
    ],
    "Name": "Site2-bb73293396",
    "Description": "Site2",
    "CreatedDate": "2018-11-22T08:48:46.2333594Z",
    "ModifiedDate": "2018-11-22T08:48:46.2333594Z",
    "MatchingProfiles": 1
}

2. Create a Visitor group for this segment.
3. Set personalize content for this visitor group.
4. Go to site.
5. Login as user profile site2@episerver.com and view the personalized content.

Expected:
Logged user can see the personalized content

Actual:
He can not see the content.

• Note: For the segment created via Insight, it works fine.