E-mails to customers are sent in wrong language

[matik4]

Hi! Perhaps someone will be able to help or suggest some direction in solving the following issue. PrestaShop sends e-mails to customers in wrong language when creating the order via back office. For example - customer is registered with with id_lang for English, but e-mail is sent in Spanish, which is the default language. Screen attached below. The order and customer were created via back office.

• Presta v. 1.7.6.9
• All e-mail templates & languages are present both in /mails and /themes/x/mails/
• I edited ps_customer, ps_order and ps_cart id_lang to english as well (no effect)
• When creating the order in BO my profile language was actually English, not Spanish