Custom Object Incident ID displaying as Ref #

Summary: Custom Object Displays Incident ID instead of REF#

Content (please ensure you mask any confidential information): We have created a report that uses a Custom Object that we use to create Parent/Child reporting for incidents. When we add this field to a Workspace the field displays the Custom Object as a Ref #. However when we load that same Custom Object into a report, the report displays the incident ID instead. Is their a way to force the field to load as a Ref # instead?

When assigning a Child value we are copying the Inc # via a workflow.

Version (include the version you are using, if applicable):