Of course she did. The vicious rumors in 2019 of Wills having an affair in 2017 weren't started by accident. They came less than a year after Sparkles' marriage.
It was even alluded to when Sparkles made a comment about the ‘environment’ at the palace. Most people took it to mean Andrew's scandal.
But she had different ideas. Label all the men as misogynists and cads and their women as enabling ninnies incapable of governing. While her reborn pristine prince could be held out as a model of chivalry. Preferably with on-the-job-training, in a 'second court' in Africa, as she desperately wanted and pushed for.
I wouldn't even put it past her that her 'miscarriage' out of the blue and announced on yet another family occassion, was more of a selective harvesting so she could have a boy and a girl to fit the 'model family' mold, instead of two boys.
She's a twisted sister. To the point of having Harry, a Prince, juggle balls outside the window like the court jester, when she taped the Queen-mocking video recently
The story she told in the gossip mags of her miscarriage led me to believe it was completely fabricated.