So I love my little 2015 macbook, even the keyboard, but every few weeks I am now getting a random sticking key that doesn't depress. Luckily I found the Apple proposed solution of using compressed air whilst holding the laptop upside down. But for real - the tiniest particles of dust seem to be causing this and it is super annoying. The keys still work, but they lose their tactility. I'm planning on upgrading to whatever the new rMBP is, and I'm guessing the keyboard design may be similar. I'm hoping they have a solution to this...do other people have this issue?