Unclear Assignment Feedback

You received a lower mark than expected on your research report, and the written feedback only says 'analysis needs depth' without pointing to any section. Your next assignment is due in two weeks and uses the same skills. Speak to your lecturer after class: explain your confusion and ask for a short meeting to go through the comments.

Excuse me, do you have a moment? I've just looked at my mark for the research report, and I was a bit surprised, as I'd put a lot of work into it. The feedback says the analysis needs more depth, but I'm honestly not sure which sections that refers to. Since the next assignment uses the same approach, I'd really like to understand where I went wrong. Could I book ten minutes during your consultation hours this week to go through the comments together? Thank you, I'd find that really helpful.