The action Dismiss Slide to Unlock Keyguard unlocks the device when the slid-to-unlock keyguard is used. This action can not unlock a secure keyguard that requires to enter a password, PIN or pattern.

Warning: This function is not officially supported by Android and might not work on all devices.
Some devices require that the screen is off to dismiss the keyguard.
Some devices turn off the screen when the keyguard is dismissed. You can mitigate the problem by adding an action Turn Screen On to the flow after dismissing the keyguard.