In the attached video, the leftmost electromagnetic plant was clearly highlighted, but as seen, the module requests and other properties not transferred.
I find this behaviour highly misleading due to inconsistent UI feedback.
- Compare to eg. grid aligned blueprints: The blue hightlighting means there that the settings were copied - without the need to drag over the center of the grid.
- Also compare to [Ctrl + C] copying multiple entities: blue highlight means successful placement.
- But when [Ctrl + C] copying only a single entity, even after having dragged over the middle tile of the buiding and also having the visual highlight triggered (that usually means that you have reached the right position), the setting were still not applied.
Production misconfiguration based on mistakenly assumed success is very hard and time consuming to debug later, provided if ever noticed.

