macOS Sierra (10.12.6)
When I enter Exposé using any method, I select my desired window and it comes to the forefront, but then focus switches back to my previous app no matter what.
Example:
- Doing something in Safari
- Use Exposé to switch to Email (not app switcher)
- Email comes to the front (or un-minimizes)
- Safari comes back to the front
This also happens if I switch between windows of the same app. Meaning, if I switch from one email window to another email window via Expose, Safari again takes focus.
It's a simple bug with Exposé not giving focus to the correct app, but this all works perfectly on my other computer running Yosemite.
Best Answer
This is a bug that occurs when the app in question is assigned to "All Desktops".
Here's a work-around: right click the App in the dock and select
Options > Assign to > This DesktoporNone.