I know some work has been done recently, since after the last "official" release, to account for some changes on Soundcloud's end. Try installing the latest patch for your version (probably 3.4, but check first) from here:
Just unzip these files and overwrite the files in your current MB installation directory with files from the ZIP. (Note: This does not work with the Windows Store version).
@frankz Thank you! That actually fixed the issue.