Chosen Solution

I’ve had this problem for approximately a year now. Certain keys on the keyboard stop working. The backspace key, F1, 1, Q, F11, F12 All these keys stop working together. Never by themselves. Sometimes the fault lasts for a minute. Then spontaneously resolves. Sometimes for hours - so I’ve resorted to using a plug-in USB keyboard for the past year instead.

I was wondering if this was a common problem? Any advise is greatly appreciated

This sounds like a keyboard short, most commonly caused by a spill. Here’s a video on how to replace it: https://www.youtube.com/watch?v=M0L38wDZ… If this appears to difficult, you can always just replace the upper case. MacBook Pro 15" Retina Display Mid 2014 Upper Case Assembly Replacement