function results in 400 when called from a lab device

I have a function which results in a 400 when called by a lab device and works fine when called via Postman. I have already reduced the function to only log the request but it still results in the error without any further information.

Is there any chance you could check the server logs on your end to identify what causes the error?

Project ID: pharmalabconx
Function ID: api
Execution ID: 662213462ece73a62f1b or 66221348245d4d494ba3

One additional info which might helps is that the transfer encoding is chunked