Hi @kei2,
You are a valued member of the community and I love your stories. AI detection is not infallible. In your case, because you are an author I appreciate, I'm willing to look at the original and compare it to the one that comes through as AI. Would you be willing to share the original, pre-Grammarly/Google docs?
This is not something we do routinely because we simply do not have the time for that.