Page is in un-published mode even though DocumentPublishFrom and DocumentPublishTo dates set

Page is showing in un-published mode even though DocumentPublishFrom is set as current date and and DocumentPublishTo is set as future date. Page is created using Kentico API as below.

We should be able to create folders under the same page with Kentico API code.

Same code was working fine earlier but not working today. Is there any settings changed to show in un-published mode like in the screenshot.

Need help in resolving this issue.

Code Used to create a page: TreeNode page = tree.SelectNodes().Path(PagePath).OnSite(ObjSiteInfoIdentifier).Culture(Lang).FirstObject;

        TreeNode ObjRootNode = ObjTeeProvider.SelectNodes().Path("/").OnSite(ObjSiteInfoIdentifier).Culture(Lang).FirstObject;

        if (ObjRootNode != null)
        {
            if (page == null)
            {
                TreeNode newPage = TreeNode.New(SystemDocumentTypes.MenuItem, ObjTeeProvider);

                newPage.DocumentName = NewPageName;
                newPage.DocumentCulture = Lang;

                var pageTemplateInfo = CMS.PortalEngine.PageTemplateInfoProvider.GetPageTemplateInfo(PageTemlate);
                newPage.NodeTemplateID = pageTemplateInfo.PageTemplateId;
                newPage.DocumentPageTemplateID = pageTemplateInfo.PageTemplateId;

                newPage.Insert(ObjRootNode);
                newPage.SetValue("DocumentPublishFrom", Convert.ToDateTime(PublishFromDate));
                newPage.SetValue("DocumentPublishTo", Convert.ToDateTime(PublishToDate));

                newPage.Update();
            }
        }