{"id":13888,"date":"2025-11-20T06:01:23","date_gmt":"2025-11-19T21:01:23","guid":{"rendered":"https:\/\/m365jp.net\/?p=13888"},"modified":"2025-11-20T06:06:13","modified_gmt":"2025-11-19T21:06:13","slug":"servicedegradation-sp1187718-sharepoint-online-some-users-may-be-unable-to-load-pages-with-custom-apps-or-webparts-in-sharepoint-online-and-get-an-error-3","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-11-20-servicedegradation-sp1187718-sharepoint-online-some-users-may-be-unable-to-load-pages-with-custom-apps-or-webparts-in-sharepoint-online-and-get-an-error-3","title":{"rendered":"[serviceDegradation] SP1187718 | SharePoint Online | Some users may be unable to load pages with custom apps or webparts in SharePoint Online and get an error"},"content":{"rendered":"
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SP1187718 | SharePoint Online | Some users may be unable to load pages with custom apps or webparts in SharePoint Online and get an error<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n\n
Status<\/th>\nserviceDegradation<\/td>\n<\/tr>\n
Classification<\/th>\nincident<\/td>\n<\/tr>\n
User Impact<\/th>\nUsers may be unable to load pages with custom apps or webparts in SharePoint Online and get an error.<\/td>\n<\/tr>\n
Last Updated<\/th>\n11\/19\/2025 20:47:25<\/td>\n<\/tr>\n
Start Time<\/th>\n11\/18\/2025 17:49:47<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Some users may be unable to load pages with custom apps or webparts in SharePoint Online and get an error<\/p>\n

User impact: Users may be unable to load pages with custom apps or webparts in SharePoint Online and get an error.<\/p>\n

More info: The following error may be encountered by users when attempting to load an affected page:<\/p>\n

An error occurred during the compilation of the requested file, or one of its dependencies. ‘Microsoft.SharePoint.IdentityModel.SPAuthFlightController’ does not contain a definition for ‘IsRemoveRedirectWithProofTokenOnSignInPageEnabled’<\/p>\n

Current status: We’ve initiated the deployment of the fix to the impacted environment and we\u2019re monitoring its progress to determine an estimation for its completion.<\/p>\n

Scope of impact: Some users may be unable to load pages with custom apps or webparts in SharePoint Online and get an error. This section may be updated as our investigation continues.<\/p>\n

Root cause: A recent change intended to update the authentication flow has mistakenly removed a necessary authentication component, resulting in impact.<\/p>\n

Next update by: Thursday, November 20, 2025, at 9:00 PM UTC<\/td>\n<\/tr>\n

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SP1187718 | SharePoint Online | Some users may be unable to load pages with custom apps or webparts in SharePo […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-13888","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/13888","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/comments?post=13888"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/13888\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=13888"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=13888"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=13888"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}