- 🇳🇿New Zealand quietone New Zealand
@stevendeleus, Thanks for reporting this problem. We rely on issue reports like this one to resolve bugs and improve Drupal core.
I tested on Drupal 10.1.x, umami install. And when selecting aggregation I was reminded that it does not work with all fields. The follow message is displayed when selecting aggregation.
If enabled, some fields may become unavailable. All fields that are selected for grouping will be collapsed to one record per distinct value. Other fields which are selected for aggregation will have the function run on them. For example, you can group nodes on title and count the number of nids in order to get a list of duplicate titles.I think this is working as designed.