Unable to cancel pending events for a system on Red Hat Network Satellite Server.

Solution Verified - Updated 2011-12-26T11:50:22+00:00 -

Issue

We have scheduled an errata updates and reboots for about 290 servers for the next 14 days. Now, I want to cancel the events for 2 systems.
In the webUI, I chose the system, click "Events" and see the "pending" events but when I am trying to cancel pending events for a system it doesn't work.
Pending events remain as it is.

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