AAC encode process fails in Wavelab 13.0.2

A batch process that I use all the time in Wavelab 12 is failing in Wavelab 13. Simple script to peak limit a file and then export as 320kpbs AAC (also fails at 256kbps output format). Input file is a 48k24b WAV. The same script works fine if I set the output format to WAV. Error and encoder settings attached below. Any idea how to fix this?

Sorry for the inconvenience.
Try the following: replace this file:
WaveLab 13.app/Contents/Externals/FFmpeg/8.0.1/ffmpeg
with the version found in either:
WaveLab 13.0.10 or even WaveLab 12.0.51, and it should work.

Great - will do on Monday - thanks!

Actually,in the folder:
WaveLab 13.app/Contents/Externals/FFmpeg/8.0.1/ffmpeg

there is a readme file that proposes to set the ffmpeg in another location.
Try this (using eg. the ffmpeg from WaveLab 12), instead of replacing the one of the WaveLab 13 folder.

Alas, neither of the above seem to work (unless I’m doing something wrong, which is entirely possible). I tried replacing the app/contents/externals/ffmpeg/8.01 with the one found in WL12 (7.1.0) - that didn’t do anything. I also tried your second idea of placing the older ffmpeg version in the suggested location in the readme (/Library/Application Support/Steinberg/Externals/FFmpeg/8.0.1/ffmpeg) - actually there was no “Externals” folder in this location, so I created one and put 7.1 in there. Same error.

Thoughts?

Your problem, I could reproduce it. This is caused by a faultly ffmpeg file included in WaveLab 13.0.20 for macOS (this will be corrected in WaveLab 13.0.30).
In the same time, I could solve the problem by doing what I told you.
Try again. Replace the ffmpeg file itself, don’t add the 7.1.0 folder.

Ah, ok - that gets it - put the 7.1.0 version. in the 8.0.1 folder. Thank you!