Please make sure that
- there is no invisible HTML code inside the shortcode (switch your editor from “Visual” to “Text”)
- where ever a parameter uses a value (the part on the right side of the equal sign) that contains a space, that value is wrapped in quotes or double quotes.
- all (double) quotes that are used to wrap values are unformatted (not tilted etc.)
unformatted double quote:
formatted double quote, won’t work: