MacBook Pro, 13", Mid-2012, 2 .5 GHz Intel Core i5, 16G RAM, 512GB SSD (Crucial MX100).

My dock likes to randomly disappear. It seems to happen mostly when I quit a program and go back to the Finder. I can usually get it back by going to "System Preferences" and clicking on the sliders for "size" and "magnification."

I keep the dock on the left side of my screen and use magnification. I do not have the box checked for "Automatically hide and show the Dock." I doesn't happen very often, just enough to be irritating. Has anyone experienced something similar? Any suggestions to resolve this minor but irritating issue?

EDIT: Running Sierra 10.12.6



Edited 1 time(s). Last edit at 09/17/2017 06:45PM by MindMeld.

I would try Disk utility to do First Aid. If that doesn't work, download and re-install 10.12.6 on top of your existing OS. No data will be lost, as it is only replacing/overwriting the OS, not your Home directory or any other user files.

You will find Sierra under Purchased at the MAS.

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Ed (modelamac)

I think I will just put an OUT OF ORDER
sticker on my head and call it a day.

Do you use a second display with your MBP?

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No second display.

Zoom in and out on a MacBook. You can also zoom in and zoom out your screen on a MacBook Pro (or MacBook Air). Again, hold down the [ctrl] key, but this time take two fingers and swipe upwards on the trackpad area to zoom in, then use your two fingers to swipe downwards to zoom out.

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“Live your life, love your life, don’t regret…live, learn and move forward positively.” – CR Johnson
Loving life in Lake Tahoe, CA

The key combo Option + Command + D will hide/unhide the dock. Next time it disappears give the key combo a try.

OK. I have re-installed 10.12.6 so we'll see how it goes. Since the issue is so random I'll have to wait about a week to see if it happens again. I'll let you know.

Thanks DewGuy, I didn't know this. I'll try it the next time it happens. Maybe I've been inadvertently hitting those keys to make it disappear although I don't think so.

Thanks all.