Using 1.1.4, when I remove a depot, a ghost depot remains. By that, I mean while nothing visibly remains of the depot, I cannot walk through the area it formerly occupied. If I run around, there is an invisible entity remaining in the footprint of the former depot. Interestingly, you can place belts but not other items inside the footprint. If I try and place a power pole, for example, it says mining depot is in the way. Saving and reloading does not fix the issue.