Not all my custom field options are displayed in my report. I created a new custom field, but in Explore I cannot locate an attribute associated with the field.
For a custom field to be accessible in Explore as an attribute, there first needs to be data associated with the field. After this field has been filled out on tickets and Explore has had time to sync, the issue should be resolved.
In case field values were amended, you could report on tags as a workaround.
Finally, don't delete the ticket field in the meantime, as its data is not recoverable. Deleting a ticket field removes it from reports and dashboards.
For more information, see these resources: