I've broke something on our CAS. In the server log I see the error in the subject line followed by: TaskXmlParser, error occured during parsing task definition file tasks-400-rtm.xml: At least one from merging tasks: ARTMDailyDataStore must specify merging.
I attempted to increase the timeout value for the RTMDailyMaintenance from 2 hours to 4 hours when this broke. I did make a "backup copy" of the tasks-400-rtm.xml file before I modified it. However, even when that file is put back into place I still get the error and no tasks are displayed (as expected based on the error).
Any help would be greatly appreciated.