Running Kubuntu 18.04. markdown (provided by discount 2.2.3).

With a file with only roman characters, markdown test.md -o test.html does as expected; produces a test.html file with content as expected.

If test.md contains any devanagari characters, the same command just writes to stdout but does not produce any output file! FWIW, what it writes to stdout is what it should produce in the output file.

What is happening here? How do I set things right?