I2rys (安全)
I thought they are encrypted before sent? Also while uploading a file and the folder duplicates again, If you open one of the folder it duplicates it permanently. The other one has no files and the other one has the uploaded.
I am not exactly sure if that's what's happening on your end right now, but if there was a folder consisting file(s) before name encryption was enabled, then after enabling encryption and uploading a file to a folder, technically it will be uploaded to a new folder, even though after name decryption it looks like the same entry.
After folders get duplicated on screen, once you refresh page, does both entry stay or only one is displayed?