Thank you for sharing the error messages and repro.
You could try setting the sound mode to FMOD.MODE.CREATESTREAM, which should help avoiding the warning messages.
There’s also a helpful discussion on this topic here:
I did notice the extra whitespace you mentioned in your reproduction project.
However, I wasn’t able to reproduce the warning messages on my end with a similar setup.
Is it possible that some parts of the original example code were unintentionally modified during integration?