This is a random issue, jobs are completing successfully but the status remains ‘Active’. Dependent jobs are not triggering and remain in an ‘Idle’ state.

The following error message is found in the WP log:
ORA-01688: unable to extend table

Release: AUTWAB99000-11.2-Automic Workload Automation-Base Edition
Component:

There is an issue with the table space according to the WP log: 
ORA-01688: unable to extend table AUTOUAT.RT partition 1 by 8192 in tablespace UC4_DATA 

Increase the table space of UC4_DATA 

For instruction check this with your DBA or: 
http://www.dba-oracle.com/t_ora_01688_unable_to_extend_table.htm