not sure somebody run into this and found solution.
when you run sql that's giving output from table function. Output loses the formatting.
SELECT plan_table_output FROM TABLE(dbms_xplan.display_awr(+'<sql_id'...other parameters+));
if i run this on sqlplus with "col plan_table_output format a180" it comes up as nice tablular output. with SQL developer, all fields jumbes up.