I'm at a bit of a loss how to proceed. We have a 2 server load balanced environment. It works via flexible load balancing. We then have a separate 'CMS' server which is not publically available, and content from that is couriered of #1 server. Load balancing works, as the content is publish on #1 & #2, however the examine indexes (at least of my custom examine index) on #2 aren't updated. I have to go to the developer section for #2 and rebuild that index in order to resolve the situation.

Making an edit directly on #1 updates fine on #2.

I don't think it is related but I have 9 custom indexes, which I'm told is a bad idea...

    <IndexSet SetName="NewsArticleIndexSet" IndexPath="~/App_Data/TEMP/ExamineIndexes/NewsArticle/">
    <IndexAttributeFields>
        <add Name="id" />
    </IndexAttributeFields>
    <IndexUserFields>
        <add Name="articleDate" EnableSorting="true" Type="DateTime" />
        <add Name="category" />
    </IndexUserFields>
    <IncludeNodeTypes>
        <add Name="newsArticle"/>
    </IncludeNodeTypes>
</IndexSet>

ExamineIndex.config

<add name="NewsArticleIndexer" type="UmbracoExamine.UmbracoContentIndexer, UmbracoExamine"
             analyzer="Lucene.Net.Analysis.KeywordAnalyzer, Lucene.Net"/>


<add name="NewsArticleSearcher" type="UmbracoExamine.UmbracoExamineSearcher, UmbracoExamine"
                 analyzer="Lucene.Net.Analysis.WhitespaceAnalyzer, Lucene.Net" />

ExamineSettings.config

This is v. 7.5.7