In the first example take a look at the lower panel where the wpd file contains "quik".
Next look at the bottom left of the top panel where it says "new sentence". Note the blank space between "The" and "brown".
Finally look at the bottom left of the top panel where is says "Spelling". Note the blank space before " is not in the spelling dictionary."
In the second example take a look at the lower panel where the wpd file contains "is" rather than "are".
Next look at the bottom left of the top panel where it says "new sentence". Note the blank space between "I" and "here".
Finally look at the bottom left of the top panel where is says "Subject-verb agreement". Note the blank space after "not the singular verb" and before the period.
The problematical blanks occur in the new sentences and in the explanation. In my first post I inserted exclamatio points because multiple spaces were collapsed in the inserted text.
Thank you for looking into this.