https://drive.google.com/file/d/1l2VoRHOxbb-CFl3WcBpM3COqnAhBJ6_n/view?usp=shari...
Basically, what happens here is that the blue space links to a pass-by event space. When I delete it, the destination data still persists, so placing a new space (which takes that same space ID), the blue space references the new one unintentionally, and doesn't reveal it until clicked, which can cause unexpected junctions in-game.