I am getting a Swiss Standard German, which looks like the letter "B", that replaces "ss" in my copy.
When I test with plugins enabled/disabled using the 2017 theme the issue goes away. When I enable Bones theme, with plugins enabled/disabled, I get the strange character encoding.
Copy is not pasted from Word and is generated via the WP text editor.
I've verified proper collation in my database.
An example can be found in the first paragraph, looking for the word "express" or "regardless": http://photonew.rasdesignmedia.com/about-roger-aguirre-smith/