The start debug screen shows the following part 

D: 10:37:20,173 i18n.setup_gettext:51: unsupported locale setting
D: 10:37:20,174 i18n.setup_gettext:83: Using locale 'en_US.cp1252'
D: 10:37:20,174 i18n.setup_gettext:85: Loading gettext translation, localedir='C:Program Files\Tools\SoundMusicBrainz Picardlocale'
D: 10:37:20,174 i18n.setup_gettext:87: Loading gettext translation (picard-countries), localedir='C:Program Files\Tools\SoundMusicBrainz Picardlocale'
D: 10:37:20,175 i18n.setup_gettext:92: [Errno 2] No translation file found for domain: 'picard-countries'
D: 10:37:20,175 i18n.setup_gettext:108: _ = <bound method NullTranslations.gettext of <gettext.NullTranslations object at 0x0000022C42AB6988>>
D: 10:37:20,175 i18n.setup_gettext:109: N_ = <function <lambda> at 0x0000022C41D99798>
D: 10:37:20,175 i18n.setup_gettext:110: ngettext = <bound method NullTranslations.ngettext of <gettext.NullTranslations object at 0x0000022C42AB6988>>
D: 10:37:20,175 i18n.setup_gettext:111: gettext_countries = <bound method NullTranslations.gettext of <gettext.NullTranslations object at 0x0000022C42AB5408>>
D: 10:37:20,175 i18n.setup_gettext:112: gettext_attributes = <bound method NullTranslations.gettext of <gettext.NullTranslations object at 0x0000022C42AB69C8>>
D: 10:37:20,175 i18n.setup_gettext:113: pgettext_attributes = <function setup_gettext.<locals>.pgettext at 0x0000022C42739168>

I'm not sure if this has any impact. This is just to let you know...

(Hint: There is no way to show the correct Backslash(es))