Yeah, that is strange. Can you duplicate the query and send it to another endpoint (Ie: pipedream / httpbin) and see if the same null value is received? I'm not seeing the value on that header changed in any meaningful way. Also, can you check the request in the network tab? If you select the query and go to the Preview tab you should be able to see the request headers. I've checked on a few versions, and the header seems to be present and accurate.
