FTP website backup to NAS issues after OS 6.9.2

o try to get to the bottom of this issue and have found several faults including what I believe to be the cause of my issue.

I created a new FTP server for this test.

Firstly when setting up a backup from FTP to NAS the option to 'browse' by the side of the 'share' field brings up the following window.

 Selecting the . or .. does enable me to backup from 1 level above the root folder (in my case public_html)

However the structure fails to display correctly when opening further folders and subfolders from this windows as shown below

The actual structure is

cgi-bin

public_html/test

but I can keep opening folders from within this window and end up with a never ending cascade.

Another isssue here is that once the backup job is created, if you want to then go back into that job and browse from the 'share' field again (to change what is being backed up for example) the 'browse' button does not function. The only solution is to manually type the path or delete the backup job and start again.

In relation to my issue of the backup running but not actually downloading anything to my NAS I believe the issue is to do with the number of files being indexed before the backup begins.

If I try and backup a site with 100 objects (made up of files and folders) then it does so without issue. However if that number increases (in my case to 647 objects (made up of 15 folders and the rest files) then the backup completes within 3-5 seconds but does not download anything.

I presume that this is something to do with the NAS OS having issues with indexing what it is about to backup and hitting some kind of timeout or buffer.

This doesn't appear to be related to the size of the data being backed up, but rather the amount of individual objects, as it can backup 100 files at 220MB total but is unable to backup 1000 files at 60MB total. I have several TB of space on my NAS and the site is only in the hundrends of MB.

I have also tested to make sure that it wasn't a specific type of file or file name that was the issue here and am confident this is not the case as I tested with jpg files.

Can I get confirmation that this issue will be looked into please as currently the main reason for buying my NAS in the first place is now no longer functioning.