"FolderNavigation=LoopSubFolders" not working as expected

[justsome12]

; Navigation within or between folders
; LoopFolder : Loop within the source folder and never leave this folder
; LoopSameFolderLevel: Loop to next folder on the same hierarchy level (sibling folders)
; LoopSubFolders: Loop into subfolders of the source folder
FolderNavigation=LoopSubFolders

problem:
the function only loads the images of each subfolder, after all pictures from the current folder were shown .

solution:
load all pictures from the folder and all its subfolders into the pool as that sorting by name works properly and not only shows images alphabetically from the folder one is at.