Simple channel entries call, limit by category, not working

Question

Simple as can be, my code, but I am getting all the entries, not just those in category 42.

{exp:channel:entries channel="patient-services"   
disable="member_data|pagination" 
dynamic="no" sort="asc" orderby="title" category="42"}
    <li><a href="{url_title_path=patient-services}">
    {title}    
</a></li>
{/exp:channel:entries}

UPDATE I stripped it down to this, but it's showing that every entry is in category 42, even though the CP shows otherwise. Maybe I hit a bug?

{exp:channel:entries id="18" dynamic="no" category="42"}
    <li><a href="{url_title_path=patient-services}">{title}</a>Category id
    is: {categories}{category_id}{/categories}</li>
{/exp:channel:entries}

Answer 1

Your code is correct so I'd start troubleshooting with these three things:

1. Make sure your channel short name is correct (copy and paste it to be sure)
2. Make sure your category id is correct
3. Add dynamic="no" parameter to your channel:entries tag
4. EDIT Check your URL paths. A entries tag can seemingly misbehave if you have a misspelling in the template name. Let's say your template is /blog/entry but you are calling /blog/entryy by mistake. EE will not find the "entryy" template because it doesn't exist and so will try to load the index template in the blog template group instead. A good test would be to create a "test" template group and insert your code into that index template. If it works here, then something related to the URL may be in play.