Trending Issue

After installing the October 2024 Cumulative Update (or any subsequent update) for SharePoint Server Subscription Edition, the Date column values in lists may incorrectly display as December 30th, 1899, instead of the correct date, under the following conditions: The site locale uses a date format where the day precedes the month (e.g., DD.MM.YYYY or DD/MM/YYYY). […]

Trending Issue: SPSE - Date columns show 30.12.1899 or 30/12/1899 with October 2024 CU or later

After installing the October 2024 Cumulative Update (or any subsequent update) for SharePoint Server Subscription Edition, the Date column values in lists may incorrectly display as December 30th, 1899, instead of the correct date, under the following conditions: The site locale uses a date format where the day precedes the month (e.g., DD.MM.YYYY or DD/MM/YYYY). […]

In September 2024 CU a new security fix was included which added a restriction for Workflow actions. Only actions in namespaces which are explicitly allow listed by an administrator through an authorizedType entry in the web.config and owstimer.exe.config can be used. As this modification is also required for workflow actions in 1st party assemblies shipped […]

Trending Issue: Certain Powershell operations failing after installing July 2024 CU for SharePoint 2016/2019

In the last week we received several support cases about problems introduced with July 2024 CU for SharePoint Server 2016 and 2019. Symptoms: PowerShell operations to create new site collections using certain site templates and enabling specific features like Document Set and Video and Rich Media fails with errors similar to the following: In addition […]

After installation of recent updates for SharePoint (SP2016, SP2019, SPSE) users may receive an HTTP 500 error with the following additional details: “Cannot read configuration file because it exceeds the maximum file size” April 2024 CU includes a fix which removes the existing duplicate configuration elements from the web.config and prevents future duplicates from being […]

Several customers reported an issue after installing SharePoint Server Subscription Edition March 2024 CU which includes the 24H1 Feature Update: Exception type: FileNotFoundException Exception message: Could not load file or assembly ‘Microsoft.Owin, Version=3.0.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35’ or one of its dependencies. The system cannot find the file specified. at Microsoft.Owin.Host.SystemWeb.OwinAppContext.Initialize(Action1 startup) at Microsoft.Owin.Host.SystemWeb.OwinBuilder.Build(Action1 startup) at Microsoft.Owin.Host.SystemWeb.OwinHttpModule.InitializeBlueprint() […]

After installing November 2023 CU (or later) for SharePoint Server 2016 Aggregated Newsfeeds are broken. Symptoms: Affected Users will see an empty Newsfeed web part. In the ULS log see the following error in ULS after installing November 2023 CU or later: Unexpected exception in FeedCacheService.GetConsolidatedFeed: Unable to cast object of type ‘System.Collections.Generic.List`1[System.Collections.Generic.KeyValuePair`2[System.String,System.Object]]’ to type […]

Trending Issue: HTTP Error 500.19 - “Cannot read configuration file because it exceeds the maximum file size”

After installation of recent updates for SharePoint (SP2016, SP2019, SPSE) users may receive an HTTP 500 error with the following additional details: “Cannot read configuration file because it exceeds the maximum file size” Cause The upgrade operation in SharePoint invoked through the configuration wizard (psconfig.exe or psconfigui.exe) after installing a SharePoint fix adds duplicate “<authorizedType […]

With September 2023 CU the AMSI security feature for SharePoint Server 2016, 2019 and Subscription Edition has been automatically enabled for a customers. After the activation of this feature a couple of customers have reported application pool crashes and 500 server errors. Background info The Windows Antimalware Scan Interface (AMSI) is a security feature introduced […]