For those using OEM

From the OEM Console, I look at the current alerts under Events.
I see that there's an alert that needs to be acknowledge because the flag symbol has a small eye glass icon next to it. OEM Manual says that once I acknowledge it, that eye glass icon should go away. And it does go away from my console.

However, from another console, it eye glass icon still remain even after I refresh the screen. I even re-login and it is still there. Worst of off, other administrators don't know that the alert has already been acknowledged.

Is this a bug?