version 6.4 linux-x64.zip can't unzip

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NETReactorSlayer.CLI-netcoreapp3.1-linux64.zip

➜  unzip NETReactorSlayer.CLI-netcoreapp3.1-linux64.zip.zip 
Archive:  NETReactorSlayer.CLI-netcoreapp3.1-linux64.zip.zip
  End-of-central-directory signature not found.  Either this file is not
  a zipfile, or it constitutes one disk of a multi-part archive.  In the
  latter case the central directory and zipfile comment will be found on
  the last disk(s) of this archive.
note:  NETReactorSlayer.CLI-netcoreapp3.1-linux64.zip.zip may be a plain executable, not an archive
unzip:  cannot find zipfile directory in one of NETReactorSlayer.CLI-netcoreapp3.1-linux64.zip.zip or
        NETReactorSlayer.CLI-netcoreapp3.1-linux64.zip.zip.zip, and cannot find NETReactorSlayer.CLI-netcoreapp3.1-linux64.zip.zip.ZIP, period.