Comment 12 for bug 1663075

Testing with (random) other locale via cli:
- ok: en_US, en_GB, ja_JP, zh_TW, zh_CN, he_IL, C
- not ok: fr_FR, it_IT, es_ES, ru_RU, pt_BR

Note that the bug does not reproduce if the UI language is selected via Inkscape preferences (while launching inkscape with the default locale as defined for the terminal) - tested with German and French.

@Mc - any idea what could cause this? Symptom is the same independent of whether locale is defined via $LANG or $LC_ALL.