I just noticed something very strange: when I drag the node to the top (as in the image below), the flow starts to work correctly. Now it executes as expected, does the insert (1) when passing the node, and executes the insert (2) at the end, all correctly... I dragged the node down and up several times to be sure, and this does indeed happen: when it's at the bottom, it waits for the last node, when it's at the top, it executes instantly. Is this an expected result?

Watch the video below:
https://drive.google.com/file/d/1HMM-hv1gjyZ6EUJ9dBu-pARknkRPN3_p/view?usp=sharing