We have discovered that that Snowflake Extractor can be suffering from a similar problem as the MSSQL extractor reported earlier.
The issue affects only configurations using custom query. In case the extracted table contains more then 16 columns, the data may have been swapped within the table columns. The issue was live between 19.4. 14:51 - 20.4. 11:17 UTC.
The extraction itself does not manifest any error. It can only be discovered later in the pipeline. We're working on finding all affected tables and we'll be contacting you through our support system with possible repair options in case your project is affected.
We sincerely apologize for this problem. A postmortem will be published with the root cause once we resolve the data issues.
April 27, 2021, 06:50 UTC We found out that no job met the conditions for the error to take effect (even though the error was in the code and we have already fixed it).