FileLu don't work

What is the problem you are having with rclone?

FileLu does not work: I have linked the accounts by entering the SSCE key and they appear in Explorer. However, I get error both loading from Explorer interface and commandline.
ERROR : file.zip: Failed to copy: failed to list existing files: API error: Invalid FileLu Rclone Key from cmd.
File upload failed from gui.
I am sure that the key is right.

After that, I would also like to merge the accounts, so that I can write to them as if they were one folder, which I think is done with Union merges the contents of several upstream fs

Run the command 'rclone version' and share the full output of the command.

rclone v1.70.3

  • os/version: Microsoft Windows 10 Education 22H2 22H2 (64 bit)
  • os/kernel: 10.0.19045.6093 (x86_64)
  • os/type: windows
  • os/arch: amd64
  • go/version: go1.24.4
  • go/linking: static
  • go/tags: cmount

Which cloud storage system are you using? (eg Google Drive)

FileLu

The command you were trying to run (eg rclone copy /tmp remote:tmp)

"rclone.exe" copy file.zip myFilelu:

The rclone config contents with secrets removed.

[myFilelu]
type = filelu
key = ***

A log from the command with the -vv flag

2025/07/19 13:07:13 DEBUG : rclone: Version "v1.70.3" starting with parameters ["rclone.exe" "copy" "file.zip" "myFilelu:" "-vv"]
2025/07/19 13:07:13 DEBUG : Creating backend with remote "file.zip"
2025/07/19 13:07:13 DEBUG : Using config file from "C:\\Users\\me\\AppData\\Roaming\\rclone\\rclone.conf"
2025/07/19 13:07:13 DEBUG : fs cache: renaming child cache item "C:\\Users\\me\\Desktop\\file.zip" to be canonical for parent "//?/C:/Users/me/Desktop"
2025/07/19 13:07:13 DEBUG : Creating backend with remote "myFilelu:"
2025/07/19 13:07:13 DEBUG : file.zip: Need to transfer - File not found at Destination
2025/07/19 13:07:14 ERROR : file.zip: Failed to copy: failed to list existing files: API error: Invalid FileLu Rclone Key
2025/07/19 13:07:14 ERROR : Attempt 1/3 failed with 1 errors and: failed to list existing files: API error: Invalid FileLu Rclone Key
2025/07/19 13:07:14 DEBUG : file.zip: Need to transfer - File not found at Destination
2025/07/19 13:07:14 ERROR : file.zip: Failed to copy: failed to list existing files: API error: Invalid FileLu Rclone Key
2025/07/19 13:07:14 ERROR : Attempt 2/3 failed with 1 errors and: failed to list existing files: API error: Invalid FileLu Rclone Key
2025/07/19 13:07:15 DEBUG : file.zip: Need to transfer - File not found at Destination
2025/07/19 13:07:15 ERROR : file.zip: Failed to copy: failed to list existing files: API error: Invalid FileLu Rclone Key
2025/07/19 13:07:15 ERROR : Attempt 3/3 failed with 1 errors and: failed to list existing files: API error: Invalid FileLu Rclone Key
2025/07/19 13:07:15 INFO  :
Transferred:              0 B / 0 B, -, 0 B/s, ETA -
Errors:                 1 (retrying may help)
Elapsed time:         1.7s

2025/07/19 13:07:15 DEBUG : 2 go routines active
2025/07/19 13:07:15 NOTICE: Failed to copy: failed to list existing files: API error: Invalid FileLu Rclone Key