Recently, I've upgraded an Umbraco site of mine from 6.0.3 to 6.0.7 (due to lack of time/developers, I am currently unable to update to a newer version of Umbraco). Today, I became aware of a problem where (at least) one of my examine index sets is not removing nodes that become unpublished.

Some background: This part of my site is a classified section, where classifieds are posted by users and unpublished using the "Remove at" property of the node. At any given time, I have between 500 and 600 classifieds published. Currently, there are 561 classifieds in the Examine Index, but only 542 that are published. This was causing some null-reference exceptions when trying to load classifieds that were no longer published.

As far as I know, this was not an issue in 6.0.3 and was wondering if anyone had run into the same issue or knew a way to remove the unpublished nodes from the index set.

Examine Configuration:

Index Set:

<IndexSet SetName="ClassifiedIndexSet" IndexPath="~/App_Data/TEMP/ExamineIndexes/ClassifiedIndexSet/">
    <IndexAttributeFields>
      <add Name="id" />
      <add Name="nodeName" />
      <add Name="updateDate" />
      <add Name="createDate" />
      <add Name="writerName" />
      <add Name="path" />
      <add Name="nodeTypeAlias" />
      <add Name="parentID" />
    </IndexAttributeFields>
    <IndexUserFields>
      <add Name="title"/>
      <add Name="keywords"/>
      <add Name="body"/>
      <add Name="categories"/>
      <add Name="isEnhanced" EnableSorting="True"/>
      <add Name="classifiedType"/>
      <add Name="contactInfo"/>
    </IndexUserFields>
    <IncludeNodeTypes>
      <add Name="Classified"/>
    </IncludeNodeTypes>
  </IndexSet>

Index Provider:

<add name="ClassifiedIndexer" type="UmbracoExamine.UmbracoContentIndexer, UmbracoExamine"
           supportUnpublished="false"
           supportProtected="false"
           analyzer="Lucene.Net.Analysis.Standard.StandardAnalyzer, Lucene.Net"/>

Search Provider:

<add name="ClassifiedSearcher" type="UmbracoExamine.UmbracoExamineSearcher, UmbracoExamine"
           analyzer="Lucene.Net.Analysis.Standard.StandardAnalyzer, Lucene.Net"/>