I opened activityMonitor and covered that UserEventAgent lighted red color. How can I fix this?

  • click on the Activity monitor window that will bring it to the front. – mmmmmm Jan 30 '19 at 12:41
  • Well, you can 'fix' it by force-quitting it or rebooting - but that won't tell you why it happened or which plugin/user process had hung. – Tetsujin Jan 30 '19 at 13:23

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