Analysis failed with `Malformed input or input contains unmappable characters`

After more tests, everything works fine on my side, even with a file/folder named like your. I was able to reproduce by first running:

export LANG=C

(before the value was fr_FR.UTF-8)
(credits to

I suggest you check your environment variables LC_* / LANG values, and possibly change them to en_US.UTF-8 before running the SQ analysis.