Harbor placement bug
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Elemental Forums
Placed not at a beach. Top left.

What you are seeing is fairly common.
I don't think much attention has been given to harbors.
Hopefully, that will be addressed soon.
I don't think it is the harbours so much as it is a problem with the tiles, I am just a player, but I have noticed that many are misread by the engine - a land tile is misread as a hill tile, sometimes as a water tile or mountain tile etc., which is why occassionally, some land tiles cannot be walked on.
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