The draft was incomprehensible. Whole paragraphs were vague, repetitive, and bewildering. It was like listening to a politician. I could not edit it. I had to rewrite nearly every section.

Out of curiosity, can you give us some examples?

We were on a tight deadline, and I was struggling to articulate what was wrong and how the student could fix it, so I sent them on to further sections while I cleaned up ... this.

This validates my experience with a draft recently. It was so slippery. On one hand it was semi-comprehensible. On the other, everything about it was wrong. I am certain it was chat GPT or the like at least in places