"Likers" LiveData Advanced Sorting and Filtering options are not displayed

STEPS TO REPRODUCE

1. Create and like a page (e.g. Pag1)
2. Go to http://localhost:8080/xwiki/bin/view/Pag1/?viewer=likers&useLiveData=true
3. On LiveData macro, click on 'More Actions' > 'Advanced Sorting' and 'Advanced Filtering'

EXPECTED RESULTS

The 'Advanced Sorting' and 'Advanced Filtering' panels display drop-downs for adding sorting levels/filters.

ACTUAL RESULTS

Both 'Advanced Sorting' and 'Advanced Filtering' panels are empty.

I've tested on XWiki 13.0 and only the 'Advanced Sorting' panel displays a single criterion: "User".