synthetics downtime list fails to deserialize response (invalid type: null, expected a sequence)

[srosenthal-dd]

Command

pup synthetics downtime list --org <site>

Error

Error: failed to list synthetics downtimes: Serde(Error("invalid type: null, expected a sequence", line: 1, column: 27052))

pup version

1.10.7

Additional context

Confirmed via source (api_synthetics.rs, list_synthetics_downtimes_with_http_info): the Serde error path only executes on a 2xx HTTP response; a 4xx/5xx produces Error::ResponseError instead. So this reproduces against a successful API response, not an auth or server error.