Intermittent data load errors in GoodData Writer

Some data loads may end with similar error message: {"upload_status.json":"SLI CSV \"dataset.outcmaincalled_numbers.csv\" does not contain header line"}. It is caused by an error in GoodData WebDav and GoodData support is working on a fix. The occurence is rather sporadic and appears in one or two client projects a day and usually vanishes after few hours.