Hi @JeongseokHyun,
Thanks for the replies. First of all, I have not found a solution, but I have found a work-around.
Instead of re-writing a new custom airframe, I have over-written the iris airframe as it is already registered on the PX4.
My question to you:
Attached is a snippet of the rCS file.
Which line exactly did you modify? How did you find that this was the solution?
Thanks.