Hello,
under DNN 5.6.1, I have problems with filesystem sync: I have a folder that does not show in a DNNFilePicker control.

After moving this dnn host to a different server, it appears it lost files sync from any folder - files are still there on filesystem, folders and files are in db tables (Folder and Files), but still filepicker cannot see them.
Filemanager can see them, and of course I tried a recursive sync - no success, filepicker still cannot see that folder.

I also tried creating a new folder with same name from file manager: I was allowed to do that! I then found two folders with same name in db, and after a sync all files were ok (appearing as children of both folders in db).
At this point I could see the folder in filepicker.

Then I wanted to make it clean, and deleted the old files and folder from db. New sync, folder and files are ok in db (and filemanager), but again the folder is no more visible to filepicker!
Is there a way to fix this situation? Permissions appear to be ok.

Any help greatly appreciated, thank you,

al.