For placed buildings they are spaced normally, and only do this when covering ghosts, but also when covering both
Top row: Rare substations. Middle row: Epic substations. Bottom row: Legendary substations. All rows were dragged from right to left.
In the test world that I attached I noticed that for buildings of different sizes, the distance between substations also changes. E.g for foundries, legendary substations have an overlap of 8 tiles (so they were placed as if they were uncommon), but for assemblers it is only 7 tiles. Bug occurs every time I do this. Tried this with other power poles but they seem fine
Didn't find this in the forum so far, I hope I wasn't blind searching for it!
