It looks like this
To prove that the text of the element contains non-breaking spaces - track it using the Web Spy and then copy-paste xpath_text to a new text file.
Preview the file in a viewer with character code display and notice A0 code in the position of the space. It is the code of a non-breaking space.
To enter a non-breaking space in the Web Spy use Shift+SPACE key combination (requires Rapise 6.5+). After fixing the XPath should start working.