We recently updated KSC 11 to KSC 12 and noticed a lot of errors on the client machines. Client versions range from KES 10.2.6.3733 through KES 11.3.0.773. With most client on version 11+ The error is below: Event type: Task cannot be performed Result: Cannot start task Object: Update Object\Name: Update Reason: Cannot start two tasks at the same time Basically, each task is throwing an error.