Have noticed over last couple of days since latest update that my MacBook Pro will not go to sleep anymore.
I have Energy Saver to sleep the screen in 3 minutes, but there is no sleep had.
When I check Activity Monitor under "Preventing Sleep" everything open is "No" except for Opera, which is "Yes". When I check the list under Opera, there is nothing with a "Yes" by it, so I am stumped.
Has anyone else had this issue and found a fix?