Hello sky,
Thank you for sending me a sample file. I reproduced the issue. I fixed the crash bug.
However, since your file does not contain any newline characters, the Large File Controller cannot split the file. It will always split lines at a newline character position, or at the end of file. If you try to apply this one line file, you will always see an empty line. You will see it when the next beta becomes available.
Thanks,