Don’t count on it. I wrote this bug up 2+ years ago.
Pure incompetence that this has not been fixed TWO YEARS later, dev team can make a whole list of new items but cant fix a keybind lol
It is pretty bizarre.
Keeping this 2 Year Old, Simple Fix item alive until someone gets embarrassed enough to fix it…..
The toggle headphone simulation control in Microsoft Flight Simulator 2024 is currently non-functional when bound via keybinds. This has been a known bug since its introduction and, as of early June 2025, still hasn’t been resolved.
Technology is just not there yet for such advanced feature.
What heck is going on with this?! How can this not be resolved yet??
I don’t Know. They are busy, but this is such an easy and attractive one. It would allow us to get close to the good old “q” 
Just today another breakthrough ai model was released. I feel soon a phd researcher will crack this incredible mystery with the help of ai which will finally allow ansobo and a team of software devs to sit down and based on it to develop this complex fix. We must hope our hardware I’ll be fast enough to cope with this incredible added complexity.
Well either that or they continue to ignore it. It’s a coin toss really. 
My worry is that if they just go and rush into fixing it without a set plan of board meetings, feasibility studies, concept art and prototyping on a private staged server, they will somehow accidentally wire it up to simultaneously delete your controller profiles, flight log, graphic settings, community folder and reformat windows. Don’t rush them, please!!
This is turning into the best thread on the forum.
The thing that kills me is that if this topic is raised in a dev Q&A this issue will be fixed in the very next build.
One has to wonder who (if anyone) at Asobo is charged with actually looking at the open bug report and flagging the easy fixes for them to address.
I’m guessing no one.
SU3 and no dice STILL?
Don’t forget - this and only a couple of other items are labeled ‘BACKLOG’ on the list. So it’s actually it’s very own, very noticeable, very small item in a very small subset that sticks out like a grapefruit.
Pretty darn difficult to miss, even if you try really really hard.
I just noticed, this button isn’t even working in MSFS 2024
Correct. The bug was “inherited” from 2020.
“World’s Most Difficult Bug to Fix” is still broken in SU4 Beta.
So hard.
At this point I’ll almost be sad if they ever do fix it. I mean not that I expect that to happen, but I’ll be a bit nostalgic.
Be careful ! the parking brake toggle bug from the early days has been fixed !
(well only on 2024)
lol when they auto-added ‘Parking Brake On and Off’ to the Honeycomb Bravo it fu barred all my Spad control setups - interfered with my physical brake binding on every.single.airplane. had to fix each one by deleting the two new entries.
Again - like VR, this stuff is not even being looked at before throwing on us…
Certainly would love to be able to control via keybind or sim event the headphone simulation!