Apparently, from the impact of meteors, resources under the map appeared and fell

300 lines of code:

(13:15:22) | Invalid Position: generic_world[20070272] metal.fragments (world) (599.9, -501.9, 136.6) (destroying)
(13:15:23) | Invalid Position: generic_world[20070274] hq.metal.ore (world) (599.7, -503.4, 136.3) (destroying)
(13:15:23) | Invalid Position: generic_world[20070270] stones (world) (599.4, -500.1, 136.3) (destroying)
(13:15:24) | Invalid Position: generic_world[20070307] hq.metal.ore (world) (425.8, -500.5, 287.6) (destroying)
(13:15:24) | Invalid Position: generic_world[20070305] metal.fragments (world) (425.4, -508.2, 287.8) (destroying)