rclone: Jotta Cloud stopped working after rclone upgrade - empty token found

What is the problem you are having with rclone?

Error when trying to refresh the token for Jottacloud remotes: Failed to get resource token: HTTP error 400 (400 Bad Request) returned body: “{“error”:“invalid_grant”,“error_description”:“The provided authorization grant (e.g., authorization code, resource owner credentials) or refresh token is invalid, expired, revoked, does not match the redirection URI used in the authorization request, or was issued to another client.”}”

What is your rclone version (output from rclone version)

1.46

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

Windows 10, Linux

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

Jottacloud

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

Any command for a Jottacloud remote

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

2019/02/21 11:47:01 Failed to create file system for "jc:/": couldn't get account info: failed to get endpoint url: Get https://www.jottacloud.com/jfs/XXX@XXX.com: oauth2: cannot fetch token: 400 Bad Request
Response: {"error":"invalid_grant","error_description":"The provided authorization grant (e.g., authorization code, resource owner credentials) or refresh token is invalid, expired, revoked, does not match the redirection URI used in the authorization request, or was issued to another client."}