If you follow below step, you can go through click error.
Step1. Turn on and Set % 'Magic TrackPad: don't allow tap to click on the left and right edge' in Tabs menu of Trackpad.
Step2. tab left and right edge on trackpad.
Step3. Click left button of Magic mouse. It was not working!!
Step4. If you tab other area of trackpad, magic mouse click will restore.
Please check it.