author mod noticed the error
if you generate a resource on the map it happens here is a bug.
/ C game.regenerate_entity ( "light-oil")
in and directly under the buildings puts resource. it would be necessary that he did not generate anything there!
and just next to the building inside
https://www.dropbox.com/s/l4j52wlfrbe8es1/bandicam%202016-08-08%2022-09-36-674.jpg?dl=0
https://www.dropbox.com/s/7hdfrq0532bvp4t/bandicam%202016-08-08%2021-58-34-897.jpg?dl=0
