It's pretty. The colors are great. The design is flowing and attractive.
Off hand, I don't see the glitch -
But - if it is really troubling you and not TOO much bother to fix whatever it is, fix it. At this point, what are another few hours on it?
If you can live with it, let it be.
Is it your sister or your niece that has the dementia?
That is always such a sad and challenging condition.
You are so sweet to take over finishing this project. (I'm not so great at finishing my own - much less what someone else started!) There may already have been "quirks" in the cutting or sewing when you took over.
((hug))