Custom result type does not appear in search result

Question

I've got some document libraries containing technical documents, across a few team sites.  I'm trying to customize the search results so that the document type shows up in the results.  Using
this example as a guide,  here's what I've done so far:
Created a term set called "Document Type" with 4 terms: "Built", "HowTo", "Kb" and "Forms".
Created a site column called "Document Type" using the term set as the source
Added a column to my document libraries using the site column
Did a crawl
Looked up the Managed  Property name (It's called "owstaxIdDocumentx0020Type").
Made a copy of the Item_Dafault files in Display Templates, renamed it DocType.html and .js
Edited the new file:
       - Renamed title to "Document Type"
       - Added 'owstaxIdDocumentx0020Type':'owstaxIdDocumentx0020Type'
       - Added _#=ctx.CurrentItem.owstaxIdDocumentx0020Type =#_ as indicated in the example.
Updated the result types
Made a copy of the "SharePoint List Item" result type with settings as follows:
       Name: Document Type
       Match "All Sources" of type "SharePoint List Item"
       Properties to match "owstaxIdDocumentx0020Type" equals any of... "Built", "HowTo", "Kb", "Forms"
       Results should look like "Document Type" (i.e. points to the new display template file above)
Saved and went back to the Search Center.  Typed in the name of a file I know has a specified "Document Type" value. It comes up in the results, but all results seem to be displayed using the default template.
So where did I go wrong?  Did I miss a step somewhere?

Answer 1

First test your template works, change the matching rule so that everything matches. That'll prove that the template itself is valid rather than the matching rules.
I suspect that your issue is in the rules. Bella's guide is fantastic but there is one difference that's worth mentioning, the guide is for a list item rather than a document. The two are subtly different.