The third picture is the screw mechanism that won't stay in.
Numbers on the part are..20755 & 30842r..it's a Norco window..jeldwin
Casey from SWISCO responded:
May 20, 2020
Hello,
Your operator could be either our 39-032 or 39-156, depending on the length of the shorter link arm. Take a look and see which set of dimensions matches up to your operator. Thanks for posting!