When you do a 'show all' on the navdata aircraft table, DR10 OO-UAR (44D432) was the last aircraft included in the last navdata update file. All aircraft above OO-UAR will have the ICAO code that we have entered into the updater.
Every aircraft that appears below that airframe in the table will have been downloaded from the server subsequent to the navdata release, and every one of the records below OO-UAR is subject to the bug corruption as it passes through the airnav server and before it reaches the user. Any wrong codes that appear on records below OO-UAR, we have no control of.