XYplorer Beta Club

It seems that prefixes of filenames with -- are handled in a special way (menu parser mode?) so that sort by name is wrong.
It can be reproduced by creating several empty textfiles in a folder and sort them by name gives wrong sort order for --prefixed names like following:
_A.txt
_B.txt
A.txt
--A.txt
B.txt
--B.txt

If you change to Binary sort, you'll probably get the order you are expecting. (in this case at least)

Configuration | General | Sort and Rename | Sort | Sort method

Compare with the sorting of these files in Windows Explorer (which can only do Natural sorting): It's the same.