https://discussions.apple.com/thread/7847126
In GENERAL > ACCESSIBILITY > RECIPES > LAUNCH RECIPE set it to NONE.
Start SWITCH CONTROL with the triple click.
Tap the unwanted dialogue OK button when it becomes highlighted and then tap the circle icon that pops out when it highlights.
Now go back to LAUNCH RECIPE and set it to the recipe you want.
Try and run the recipe again (starting with the triple click).
上網搵唔知work唔work,我本身冇呢個問題