Mission Control slow and closing without user intervention

Symptom


Mission Control is slow and the application is closing without user intervention.

Problem


This is probably caused by Mission Control attempting to use hardware accelerated rendering in a way not supported by the OS X software renderer.

Solution


Disable animated full screen transitions in Mission Control. To do it open Terminal and run the following two commands:
defaults write com.apple.dock expose-animation-duration -float 0
killall Dock

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