rclone: FTP - Failed to create file system for "target:/TEST": unsupported LIST line

The associated forum post URL from https://forum.rclone.org

There is none.

What is the problem you are having with rclone?

I am getting Failed to create file system for "target:/TEST": unsupported LIST line error when I try to use the lsd command with my FTP backend and with any rclone version AFTER v1.60.1.

If I use v1.60.1, then everything works just fine.

What is your rclone version (output from rclone version)

rclone v1.62.2
- os/version: darwin 12.6 (64 bit)
- os/kernel: 21.6.0 (arm64)
- os/type: darwin
- os/arch: arm64 (ARMv8 compatible)
- go/version: go1.20.2
- go/linking: dynamic
- go/tags: cmount

Which OS you are using and how many bits (e.g. Windows 7, 64 bit)

MacOSX arm64

Which cloud storage system are you using? (e.g. Google Drive)

FTP

The command you were trying to run (e.g. rclone copy /tmp remote:tmp)

rclone lsd target:/TEST

The folder TEST exists on the remote.

And another note here, if I do rclone lsd target:/TEST/NON_EXISTING_FOLDER then I get a Failed to create file system for "target:/TEST/NONE_EXISTING": 501 Not a valid pathname. although it works just fine with v1.60.1 and returns empty list instead.

A log from the command with the -vv flag (e.g. output from rclone -vv copy /tmp remote:tmp)

2023/03/22 19:32:23 DEBUG : rclone: Version "v1.62.2" starting with parameters ["rclone" "-vv" "--dump" "bodies" "--log-file" "bug.log" "--config" "rclone.conf" "lsd" "target:/TEST"]
2023/03/22 19:32:23 DEBUG : Creating backend with remote "target:/TEST"
2023/03/22 19:32:23 DEBUG : Using config file from "/Users/example/rclone.conf"
2023/03/22 19:32:23 DEBUG : ftp://example.com:21/TEST: Connecting to FTP server
2023/03/22 19:32:23 DEBUG : ftp://example.com:21/TEST: dial("tcp","example.com:21")
2023/03/22 19:32:23 DEBUG : ftp://example.com:21/TEST: > dial: conn=*fshttp.timeoutConn, err=<nil>
2023/03/22 19:32:23 DEBUG : FTP Rx: "220 Service ready for new user."
2023/03/22 19:32:23 DEBUG : FTP Tx: "USER example"
2023/03/22 19:32:23 DEBUG : FTP Rx: "331 User name okay, need password for example."
2023/03/22 19:32:23 DEBUG : FTP Tx: PASS *****
2023/03/22 19:32:25 DEBUG : FTP Rx: "230 User logged in, proceed."
2023/03/22 19:32:25 DEBUG : FTP Tx: "FEAT"
2023/03/22 19:32:25 DEBUG : FTP Rx: "211-Extensions supported"
2023/03/22 19:32:25 DEBUG : FTP Rx: " SIZE"
2023/03/22 19:32:25 DEBUG : FTP Rx: " MDTM"
2023/03/22 19:32:25 DEBUG : FTP Rx: " LANG en;zh-tw;ja;is"
2023/03/22 19:32:25 DEBUG : FTP Rx: " MLST Size;Modify;Create;Type;Perm"
2023/03/22 19:32:25 DEBUG : FTP Rx: " AUTH SSL"
2023/03/22 19:32:25 DEBUG : FTP Rx: " AUTH TLS"
2023/03/22 19:32:25 DEBUG : FTP Rx: " MODE Z"
2023/03/22 19:32:25 DEBUG : FTP Rx: " UTF8"
2023/03/22 19:32:25 DEBUG : FTP Rx: " TVFS"
2023/03/22 19:32:25 DEBUG : FTP Rx: " MD5"
2023/03/22 19:32:25 DEBUG : FTP Rx: " MMD5"
2023/03/22 19:32:25 DEBUG : FTP Rx: " MFCT"
2023/03/22 19:32:25 DEBUG : FTP Rx: " MFMT"
2023/03/22 19:32:25 DEBUG : FTP Rx: "211 End"
2023/03/22 19:32:25 DEBUG : FTP Tx: "TYPE I"
2023/03/22 19:32:25 DEBUG : FTP Rx: "200 Command TYPE okay."
2023/03/22 19:32:25 DEBUG : FTP Tx: "OPTS UTF8 ON"
2023/03/22 19:32:25 DEBUG : FTP Rx: "200 Command OPTS okay."
2023/03/22 19:32:25 DEBUG : FTP Tx: "MLST /TEST"
2023/03/22 19:32:26 DEBUG : FTP Rx: "250-"
2023/03/22 19:32:26 DEBUG : FTP Rx: "Size=2258880811416;Modify=20230322173224.000;Create=20221213132421.000;Type=dir; TEST"
2023/03/22 19:32:26 DEBUG : FTP Rx: ""
2023/03/22 19:32:26 DEBUG : FTP Rx: "250 Requested file action okay, completed."
2023/03/22 19:32:26 Failed to create file system for "target:/TEST": unsupported LIST line

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