My b2evolution Version: 4.1.x
v4.1.1
The admin language persists in using Spanish. I am not proficient in Spanish (although it is educational); I prefer English.
On both the Global and Blog Settings Regional pages the "Default locale" language is set to "English (US)." Nevertheless, it is English for the non-admin users, Spanish for the admin.
How do I convince b2evo to use English?
check your user profile settings locale