Cannot delete dataset, eats up more than 6TiBs

Almost a year ago I lost data. I was able to recover most of it with snapshots but I never clean up the datasets. Today I decided to tackle this. I was able to delete every unused dataset except for one. No matter what I do, TrueNAS scale refuses to delete it. I was able to share the folder and nothing is in it (even looking at hidden files) yet TrueNAS says that folder eats more than 6TiBs.

All of my data is in other datasets. How can I delete this dataset? I cannot use shell, another error “Permission denied”. I would love to post a screenshot but there is no option to upload a photo.

What if you type sudo in front of the zfs and zpool commands?

This will provide more information about the dataset:

zfs list -o space <pool>/<dataset>