Thanks, Juan Manuel, if LuaTeX just solved the "symbols problem" it 
would be a great feature.

But.., why nothing in TeX seems to be easy?! ;D

    lualatex: security risk: running with elevated privileges
    This is LuaHBTeX, Version 1.12.0 (MiKTeX 20.11)
      system commands enabled.

    lualatex: file not writable for security reasons: .log
    ! I can't write on file `.log'.
    Please type another transcript file name
    ! Emergency stop
    !  ==> Fatal error occurred, no output PDF file produced!


Probably a Windowz problem, don't care. Just moaning ;D

But I take your advise and save it.

Best regards


> *From*: 	Juan Manuel Macías
> *Subject*: 	Choosing a LaTeX Compiler (my predilection for LuaTeX)
> *Date*: 	Mon, 05 Apr 2021 22:48:48 +0200
> *User-agent*: 	Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux)
>