Comment 55 for bug 1506817

I have had an engineer replace the TrackPad just to make sure, but the problem persists.

I can reliably reproduce the problem now though.

If, while pressing the top buttons on the TrackPad (the physical ones), you simultaneously touch the TrackPad itself with your thumb, and then release the physical button, the release event does not register and the button will "stick".

It's as if the release event is suppressed because the thumb is touching the TrackPad.