FIX the bug of audio missing from export

I have the same problem and I thought Premiere 22.5 that I downloaded today would fix it... but it didn't!!!!!
This is frustrating! It seems that the millennial engineers are worry more for how the suite looks rather than stability and performance. I have been getting a lot of issues when exporting, like video glitches and audio channels missing.
I still miss how Premiere Pro was the best editing program in the 90's. Now it gets worse every time it is upgraded.
I agree with all the bad comments in this thread.

Hi all. I had tried everything in this thread and nothing worked. I have now found a workaround that fixed it for me.

I placed another random audio clip at the same point as the impacted audio in the timeline. I then reduced the gain on the random clip so it cannot be heard and, for some reason, that make the original impacted audio register in the export.

Hope this helps someone.

Seeing how long this issue has been ongoing without a resolution is truly disappointing by Adobe!

I was having no luck with all the solutions others found on this thread. Instead for me, just by dragging the audio onto a new track below seemed to fix it. Hope this will help some others and save the time I wasted.

thanks for all the workarounds provided,
mine as said is to export wav and reimport then export video again,
but the truth is:
THIS SHOULDN'T BE HAPPENING IN A SERIOUS SOFTWARE I PAY EVERY YEAR!!!
this is a shame, sometimes we need to export and deliver ASAP, we can't recheck, and now I'm moving all my project elsewhere, but when really I have no alternatives and I have to use Premiere (today I do and I'm on version 22.4) and every time this stupid bug is there, and instead of fixing it you just messed up the export tab...

to FERGUS HAMMOND, here's a link to a project affected: https://drive.google.com/drive/folders/1eDJDCupGhcmyw2iH0YA6qxwttewpplWD?usp=sharing

I have a pretty good workaround. If you find you're missing audio in your video.
1) Mixdown audio tracks into a .wav (or mp3, aac)
2) Use FFMPEG to replace the audio track of the video -- while copying bit-for-bit the video track to a new file (without rerending it.).

In command prompt (or Terminal for Mac users), run:

ffmpeg -i C:\videos\my-input-file.mxf -i C:\videos\my-input-file.wav -c:v copy -map 0:v:0 -map 1:a:0 C:\videos\my-new-file.mxf

(Please note: You must install FFMPEG. Save the ffmpeg.exe, ffprobe.exe, and ffplay.exe into a location like C:\bin. Then add C:\bin to your PATH environment variable for your computer. https://windowsloop.com/install-ffmpeg-windows-10/)

I've included a .bat file (for Windows users) that can easily drag-and-drop your video file (i.e. C:\my-file.mxf) onto, and it'll merge it with the audio file (i.e. C:\my-file.wav) and output a new file (C:\my-file.new.mxf) in the source video's directory.

https://github.com/aidenvalentine/ffmpeg-replace-audio-track/blob/main/ffmpeg-replace-audio-track.bat

I've also included a .reg file that'll add a Right-Click menu item to .mxf and .mp4 files called "FFMPEG Replace Audio Track" which runs the .bat file. For those of you that like a nice workflow.

https://github.com/aidenvalentine/ffmpeg-replace-audio-track/blob/main/Add%20Right-Click%20Menu.reg

This is completely unacceptable and still happening as of today. I was finished with my project nearly a week ago and yet I have been in export **** ever since! First with random issues such as "Error retrieving frame **** at time **" or "Bad allocation while creating disk aligned video frame."

Finally after enabling automatic system management of Windows Page Files on ALL DRIVES

I had a successful export which resulted in a useless file due to ANOTHER ERROR:

"File importer detected an inconsistency in the file structure of ****. Reading and writing this file's metadata (XMP) has been disabled."

Finally after disabling writing XMP metadata the file exported successfully and now this audio issue!!!!

All of these problems appear to be YEARS old! Like others have mentioned I am very much looking toward using Davinci Resolve instead of this terrible software.

This trial & error BS is unacceptable for what should be the simplest part of the entire process! This video is 2.5 hours long and last took FIVE HOURS to export. I can't keep having to waste DAYS retyring failed exports (of course they always fail either at the very end of the process, or at least several hours into it)

And for some more data points

I am encountering this audio issue with files that are all 44.1 khz - exporting to 44.1khz, h.264 (don't even get me started on HEVC - seems to exporting fine and then boom computer crashes everytime at the end)

Adobe needs to seriously tackle these bugs, there is no excuse that these issues have existed for years.

wow Adobe, you guys did it again. I am very frustrated with this one because it costs us time and money checking after rendering after rendering just to make sure the audio isn't missing! I don't want to export audio track just to overcome this issue. Please fix this asap! my clients blamed me already few times because of this specific issue and I just don't want to be blamed for something we didn't do. this just makes us lose the trust between us for not doing "the job". It happens way more than you can imagine.

This tends to happen with
1. a multicam clip after syncing two videos to a sound of a handclap or slate.
2. when an audio clip has some cuts but nothing is deleted

Those setups shouldn't even affect the audio tracks to begin with...
But you never know when this happens, it's super random.

This is a critical bug, period. freaking ridiculous.

Running version 22.4.0 here and can confirm that this is a shameful bug that's been around for a while.

I've been using the Premiere platform since the late 90s. 100% Premiere veteran. Without a doubt, no drama, Premiere (and Adobe software in general) has become SHITWARE. If there was a comparable alternative I'd be trying it for sure! Also considering stopping my membership after the term is over and doing good-old warez instead as what's the point of having the most up-to-date version if new things break on releases and old problems aren't even acknowledged?

Terry Kent's solution worked for me too! Thank you!

This must be handled as a critical bug.

Audio is fine in preview but after export some audio clips are muted unexpectedly at random places. This can ofc completely ***** up a video but the randomness makes it easy to miss.

I feel bad for those delivering to clients or Youtube and get blamed for lazy editing, when they haven't done anything wrong.