This is an update:
Yesterday V14.2 update was released and it changed the way the reports look. Now the first record for each consignor still is truncated and then all the following records show the fields. So the update partly fixed the reports appearance.
Possible bugs should be reported over in Report an Issue where they will be more reliably and quickly seen by Tech Support personnel working for FileMaker Inc. Be prepared to provide a description of how your layout is designed and please name the Browser or Browsers you are using to view this layout when you see this problem.