Management Blogs 6.1 introduced a bug in the module.config that causes Management Blog items to not show up in Activity Feeds.

Customers with this error will see the following error in their log files:

<LogEntry>
<LogType>Error</LogType>
<Timestamp>2018-05-16 12:08:39-04:00</Timestamp>
<UserID>00000000-0000-0000-0000-000000000000</UserID>
<Message><![CDATA[Error while loading a Service for the module, 'Management Blogs.']]></Message>
<Exception>
<![CDATA[System.Configuration.ConfigurationErrorsException: The Service for the module, 'Management Blogs,' cannot be loaded because a type is not specified.
at Passageways.Portal.Web.Modules.TypedItem.GetTypeValue(PortalModule module, DataTable table, DataRow row)
at Passageways.Portal.Web.Modules.TypedItem..ctor(PortalModule module, DataTable dataTable, DataRow dataRow)
at Passageways.Portal.Web.Modules.ModuleManagerService.<>c.<Get>b__6_8(PortalModule a, DataTable b, DataRow c)
at Passageways.Portal.Web.Modules.ModuleManagerService.ProcessCollection[T](PortalModule module, ICollection`1 collection, DataTable table, Func`4 creator)
]]></Exception>
</LogEntry>

This issue can be fixed in the module.config.

Find the line below:

<Service Name="BlogFeed" Type="Passageways.Modules.Blog.BlogFeed, Passageways.Modules.Blog" />

and replace it with the following line:

<Service Name="BlogFeed" Type="Passageways.Modules.ManagementBlog.BlogFeed, Passageways.Modules.ManagementBlog" />