failed to copy a logging object

[noguxun]

$ fastlyctl copy 5avoFtOr1vIxYawDXJLAwF 21r53RlVVdMeULlEdZPH94 logging/papertrail x --v1 137 --v2 61

Copying logging/papertrail x from 5avoFtOr1vIxYawDXJLAwF version 137 to 21r53RlVVdMeULlEdZPH94 version 61...
400: Bad API request--something was wrong with the request made by FastlyCTL. Method: POST, Path: /service/21r53RlVVdMeULlEdZPH94/version/61/logging/papertrail
Message from API: {"msg":"Bad request","detail":"No condition named ''"}