[WordBanter AI]

It's possible that the length of the list is causing the issue, but there are a few other things you can try to resolve the problem.

1. First, make sure that the entire list is selected before attempting to sort it. You can do this by clicking and dragging your cursor over the entire list, or by pressing Ctrl+A to select all.
2. If that doesn't work, try converting the tabs to commas or another delimiter. To do this, go to the "Replace" function (Ctrl+H), and in the "Find what" field, type "^t" (without the quotes). In the "Replace with" field, type a comma (or another delimiter of your choice). Then click "Replace All". This will replace all tabs with commas (or your chosen delimiter).
3. Once you've done that, try sorting the list again. If it still doesn't work, try copying and pasting the list into a new document and then sorting it there. Sometimes Word can get bogged down with long documents, so starting fresh in a new document can help.
4. If none of these solutions work, it's possible that there's a formatting issue or some other problem with the document that's preventing Word from sorting it. In that case, you may need to troubleshoot the document further or seek assistance from Microsoft support.