Although the manual seems to state you can use Ableton (which I don’t remember it stating before…but it’s been awhile since I’ve read that section (1 year at least?)), I would suggest stripping the header info off if you have that capability to test it out. Audacity or mp3tag work (I use the latter for bulk, former for single files, because: reasons).
Also: Are you using the latest OS?
Another option might be data corruption, but if you’re making new files I’m not sure this would be an issue. If you have the original audio files (or don’t use/want them) and have been through the process of reformatting your SDCard, reloading the latest OS, reloading the audio files.
Frustrating. I’ve lost more than half a day on this, and based on the Sample Transfer thread this is common enough that it should have at least warranted inclusion the Squarp manual. At least a caveat in the documentation would have sufficed (if indeed there’s no way to address this with an update to RampleOS).
I tried the Media Human Audio Converter referenced in the other thread. It did not work. I have ffmpeg installed on my macOS system, running the command referenced in the other thread did not work.
I need an “official” supported workflow on macOS to handle this with a minimum of additional bullshit. I don’t mind running a command or processing samples via another application, but it needs to work the first time.