I am wondering if anyone had experience of using custom email_html.mustache in custom theme that is not Moodle's main system theme.
System theme is set to boost. Individual user's theme is set to a custom theme. When user is logged in and e-mails are generated by user's action within the theme all e-mails are styled correctly using email_html.mustache supplied with user's custom theme.
However, when e-mails are generated by cron and etc..., with user logged out - all e-mails sent to the user use default system theme ignoring user's or cohort's theme settings.
Did anyone else encountered this and was able to resolve this in Moodle 3.9?