Failure to render utf8 characters when sourced

[Pippo Carmona]

Greetings!

Since the Refer csl cannot be changed, I used the .ds macro to supply my 
footnotes and bibliography with the formatted entries that fit my 
specification. However, if the .ds macros are sourced from a separate 
file using .so, some characters are rendered incorrectly. For example, é 
becomes é. And when I set the macro in the same document, it is 
rendered correctly.

I have used -k and preconv to try solve the issue, but it just doesn't 
work. Is there a workaround that I need to do, or is this a bug?


Thank you!