After 3 class action lawsuits and an online petition Apple has finally admitted that there is a problem with the current keyboard design on the MacBook and MacBook Pro and is offering free repairs to customers who have been affected.
When Apple introduced the ‘butterfly’ mechanism keyboard with the MacBook in 2015, and the MacBook Pro in 2016, Many users have since reported problems with keys repeating characters and other keys not working.
According to Mac users, dust and small particles can get stuck under keys or the spacebar, making them unresponsive. Because the ‘butterfly’ mechanism distributes the pressure on a key more evenly than the traditional ‘scissor’ mechanism, if a spec of dust gets underneath a key it can stop the key from depressing all the way and that can stop the key from registering.