Simple report query not working

I found when I create this simple query in the report designer:

SELECT TO_CHAR(trunc(sysdate)-1, 'DY MON DD') as "Date" from dual

the report does not process the query and becomes very unhappy. preview stalls out intermittently. when I remove the query all is well again. maybe im doing something wrong. haven’t seemed to have any issues with other queries. I just created a parameter to create the date format im looking for but thought I would let someone know the issue.

I just tried this query in a report in 7.8.0, and had no problems. No errors in the console or Designer, and the query gives exactly the result I expect both in the report itself and in the data preview panel.