AnnaAnthro, 
Can Using a Grammar Checker Set Off AI-Detection Software?
“A US college student says she was falsely accused of cheating and given a zero, and her story has gone viral.
She said she used #Grammarly spell check on her essay but it set off TurnitIn’s #AI censor.”
Where is the line between acceptable help and cheating with AI?”
https://www.edsurge.com/news/2024-04-04-can-using-a-grammar-checker-set-off-ai-detection-software