Can't browse subfolders

I can connect to my Switch, but can't browse subfolders. When trying to open 'switch' folder on root of sd card Forklift on macOS returns:

The item "switch" could not be opened.
Server response: '200 OK' 

while finder shows an empty folder.

Running HOS 10.1.0, AMS 0.14.4, sys-ftpd-light 1.0.4 (from hbappstore)

So I know this is an old post, but I had the same problem and fixed it.

First checked that the archive bit is not set because i read somewhere that that could also be the issue, not on my end though.

My problem was that apparently the folder was marked as read only. I fixed it by rebooting to Hekate, going to tools, then USB tools and then sdcard to mount the card in windows. Then look up the folder, right click for properties and uncheck read-only.

Good luck.