Thank you @Zakarya Moosavi for reporting the bug. Several other users have also reported the same issue. We are investigating, unfortunately we could not yet repro the problem at our end.
Can you please give little bit more details about the source - so that we can isolate the bug and fix it? If possible, please upload a sample session with a sample source file @audbugs@adobe.com .You can also upload the contents to any shared location and send us the download link. Thank you in advance.
Unfortunately, due to the file protection protocol in our organization, I cannot upload my session files.
But, I can explain in more detail for you:
Suppose you have a multitrack session with four track lines and each line has a stereo file with 2 or 3 active plugins; All plugins are Adobe built-in;
This session is about 10 minutes long; Without any automation;
Today I updated my Adobe Audition to v23.6.1.3;
After this update, the error for exporting the session to a .wav file is resolved, but exporting to a .Mp3 file remains.