In findflight, it seems tailnumber is missing. I have turned on extended data.
What airports were you searching between? Was this for an airline flight?
Yes, airline flight. Multiple airports, basically any city pairing I try there isnt a tailnumber included.
I see it mentions that it should be included in the return, but I am not seeing it in queries. I have opened a ticket on the team for their evaluation.
I have not tested, but was informed this has been updated. Give it a try and let me know if there is anything that is unexpected.