Mac OS Big Sur - Dialog box not responding to mouse clicks

I have noticed that dialog boxes which open up for File Open or File Save As functionality in various applications do not respond to mouse clicks. I can close the dialog box by pressing on the "escape" key and can run default (highlighted) action by pressing the "enter" key. However, mouse clicks do not work. Has anyone faced this issue and is there a solution? I am using 2018 MacBook Pro 13 inch with Retina display.

Posted on Dec 8, 2020 7:44 AM

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Posted on Jul 17, 2021 2:19 AM

I've figured out a way to resolve this on my machine (the System Preferences thing is the real bugaboo!): removing your `com.apple.systempreferences.plist` preferences file.


The step-by-step:


  1. Close System Preferences
  2. Go to Finder and select your user/home folder.
  3. With that Finder window as the front window, either select Finder/View/Show View options or go command - J.
  4. When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder.
  5. Select Library.
  6. Then go to Preferences/com.apple.systempreferences.plist.
  7. Move the .plist to your desktop.


Restart the computer, open the System Preferences, and test. If it works okay, delete the plist from the desktop -- you won't need it anymore. If it didn't work, well, that sucks. Return the file from your desktop to the place you got it from, overwriting the newer one, then restart.


Hope that helps; let us know if it does!


Kind regards,

Erwin

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Mac OS Big Sur - Dialog box not responding to mouse clicks

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