Opmanager 7 -- not able to delete a monitor

Opmanager 7 -- not able to delete a monitor

I added a server, and added a monitor on a disk partition. I set a threshold, and an alarm was generated because the threshold was violated. Subsequent analysis showed that I should not have been monitoring that particular partition. I deleted the alarm, and deleted the monitor. However, the monitor refuses to remove. I dlete it, but the redisplay still shows the monitor. And it is still monitoring -- it is not some ghost.

How do I delete this monitor?

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