Embedded SP site in Teams app, Stream not rendering

Sridevi-MSFTHere you are.  I appreciate your helping looking into this!

{
  "$schema": "https://developer.microsoft.com/en-us/json-schemas/teams/v1.9/MicrosoftTeams.schema.json",
  "manifestVersion": "1.9",
  "version": "1.0.7",
  "isFullScreen": true,
  "id": "2bece6c3-56a8-493d-98dc-63c6b02078b1",
  "packageName": "signetgroup.net.corporateintranet",
  "developer": {
    "name": "SIGNET",
    "websiteUrl": "https://signetgroup.net",
    "privacyUrl": "https://signetgroup.net/privacy",
    "termsOfUseUrl": "https://signetgroup.net/termsofuse"
  },
  "icons": {
    "color": "color.png",
    "outline": "outline.png"
  },
  "name": {
    "short": "Connect",
    "full": "SIGNET Connect"
  },
  "description": {
    "short": "SIGNET Intranet",
    "full": "My awesome intranet application to embed modern SharePoint to Teams"
  },
  "accentColor": "#1A2664",
  "staticTabs": [
    {
      "entityId": "00001",
      "name": "Intranet Home",
      "contentUrl": "https://signetelec.sharepoint.com/_layouts/15/teamslogon.aspx?SPFX=true&dest=/sites/SIGNETInsider2/SitePages/Home.aspx",
      "websiteUrl": "https://signetelec.sharepoint.com/sites/SIGNETInsider2",
      "scopes": [
        "personal"
      ]
    },
    {
      "entityId": "about",
      "scopes": [
        "personal"
      ]
    }
  ],
  "permissions": [
    "identity",
    "messageTeamMembers"
  ],
  "validDomains": [
    "signetelec.sharepoint.com",
    "signetgroup.net"
  ],
  "webApplicationInfo": {
    "id": "00000003-0000-0ff1-ce00-000000000000",
    "resource": "https://signetelec.sharepoint.com/",
    "applicationPermissions": [
      "file.read.group"
    ]
  }
}