https://community.appian.com/discussions/f/general/18960/cdt-rule-input-not-appearing-as-nullHi all, I&#39;ve got a child interface that takes in some rule inputs of various CDT&#39;s. These rule inputs are populated in the parent by expression rules that query the db, and indexes the result for the data or returns null. I&#39;m running into issues inen-USTelligent Community 12https://community.appian.com/thread/74475?ContentTypeID=1Mon, 01 Jun 2020 15:40:53 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:3040fa88-3b9f-4a9e-94ac-802d7bb9f473johng0005<p>Cheers Peter, that&#39;s the exact same issue. I tried searching around before posting this but couldn&#39;t see anything. Thanks for your help.</p><div style="clear:both;"></div>https://community.appian.com/thread/74474?ContentTypeID=1Mon, 01 Jun 2020 15:37:05 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:6da3dd64-0276-4002-96bd-1ed7c4f2fb77Peter Lewis<p>I think you&#39;re having the <a href="/discussions/f/data/18948/query-entity-rule-is-returning-type-cdt-when-the-result-is-null-for-single-type-cdt">same issue</a> that&nbsp;another poster had - see my response in the linked post.</p><div style="clear:both;"></div>