When dragging a 44.1 kHz stereo WAV into the arranger a box pops up suggesting conversion to 48 kHz. If you accept the 48 kHz conversion the file is converted to “mono” (it looks like a stereo track in the arranger with two channels), however the audio file is most certainly mono. Each channel in the converted WAV is identical resulting in mono.
If you don’t accept the conversion the file imports correctly.
Thank you for your providing us with the additional files and report via private message, which has been added to our bug base and shared with the team.
I have the same issue which was stated by robinwebb in the last post: crackling audio after conversion. It happens only in moments when audio signal goes 0 dB.