F4 Key on my MacBook Pro Late 2016 with TouchBar doesn't seem to work

The FN keys have been a problem for me too.

I found a little app called FNABLE and it's fixed all my FN key issues with the touch bar.

https://fnable.com/

This app has fixed issues in my Windows virtual machine too.

The company is very customer friendly and the app works great (highly configurable).

Hope this helps...

This was briefly fixed after either an OS or Safari update lately, I forget which, but it's now broken again. After loading up Safari, Google Search as my homepage, the F4 key no longer works and rely on it constantly in Pro Tools and Logic.

It hasn't worked for me since I bought the 2017 model back in early October. I'm really upset and disappointed with Apple in not resolving what it a huge issue for software developers trying to use a Touch-Bar MacBook Pro. It's inexcusable how such a large company with basically infinite resources to have not resolved this easy fix ages ago.

I resolve (most of the issues) by just running iTunes in a Windows Virtual Machine. Yes, it's a bandaid approach and it is a snide swipe at Apple for my having to run Windows in order to use MacOS safely. It's an embarrassment actually on their part.

Watching videos in Safari and/or YouTube or clicking a Quicktime video will cause the problem as well, but (for me) the problem disappears after about 30 seconds.

Get with the program Apple!

I've just reached out directly to Apple to make them aware of this thread and the steps to reproduce, fingers crossed we'll finally get this bug crushed soon.

It's been plaguing me since I got my machine in late 2016 and I use mine mostly with an Apple Wired Keyboard, suffice to say when the F4 key stops working, it stops working on the external keyboard too.

In Pro Tools in particular, F4 is one of only four main edit mode switching keys which are in constant use.

So yes, MBP 15" 2017 same here.

Sorry if it was already mentioned previously, but just to be sure: the F4 issue is appeared always when any media content is played. It could be Spotify, iTunes or YouTube video (doesn't matter what browser you use). I've tested that many times. As soon as you play something — F4 on the Touch Bar (and so on physical keyboards, as I understand) just doesn't work.

If you kill the process of media playback, the F4 will work in 15-30 seconds after that.

Speaking of bug report

Done that many times, through Bug Report and support advisors as well. They're already know that, yes. I got mine answer like in October-November. All we got is waiting 😔

Thanks for the heads-up. Downloaded and installed MacOS 10.13.2 and all looks good. I'm cautiously optimistic that the headaches this flaw caused are going to dissipate.

I'm attempting to break it by doing all the different ways I know of in the past that did it. So far so good. FINALLY!

I have the same problem. I don't use safari at the moment, just chrome. For me, it's the iTunes that cause the F4 to stop working. However, Alt-F4 seems to register as F4 whenever F4 is not working.

Apparently this bug has been reported multiple times. My bug report was closed as being a duplicate

of existing issue 29791643.

F4 doesn't work for me at all on Touch Bar MBP. No matter what apps are running.

This worked for me! In my case I had problems with Google Sheets trying to lock a formula. Using fn+option+F4 (in the touch bar) worked as F4 in a normal keyboard.

Thanks!

My solution was (as you can see on the above picture): set keystroke of "Mission Control" from "^↓" to F9 and set keystroke of "Application window" from "^↑" to F10. I use Hungarian keyboard.

Update on December 6:

Apple released macOS X High Sierra 10.13.2 and the bug seems to be fixed.

Hooray.

🏼♂