Roof error with free-standing walls

Hi there!

I have try to make my own wall area and bug appear!

there it is:

release-519 (x64)
stonehearth/lib/build_util.lua:750: assertion failed!
stack traceback:
	[C]: ?
	[C]: in function 'assert'
	stonehearth/lib/build_util.lua:750: in function 'create_edge_loop_for_wall'
	stonehearth/lib/build_util.lua:758: in function 'create_edge_loop_for_wall'
	stonehearth/lib/build_util.lua:758: in function 'create_edge_loop_for_wall'
	stonehearth/lib/build_util.lua:758: in function 'create_edge_loop_for_wall'
	stonehearth/lib/build_util.lua:758: in function 'create_edge_loop_for_wall'
	stonehearth/lib/build_util.lua:758: in function 'create_edge_loop_for_wall'
	stonehearth/lib/build_util.lua:758: in function 'create_edge_loop_for_wall'
	stonehearth/lib/build_util.lua:758: in function 'create_edge_loop_for_wall'
	stonehearth/lib/build_util.lua:758: in function 'create_edge_loop_for_wall'
	stonehearth/lib/build_util.lua:758: in function 'create_edge_loop_for_wall'
	stonehearth/lib/build_util.lua:837: in function 'calculate_roof_shape_around_walls'
	...th/services/client/build_editor/grow_roof_editor.lua:119: in function '_compute_roof_region'
	...th/services/client/build_editor/grow_roof_editor.lua:72: in function 'fn'
	...ces/client/selection/entity_or_location_selector.lua:202: in function '_get_selected_entity'
	...ces/client/selection/entity_or_location_selector.lua:238: in function '_on_mouse_event'
	...nehearth/services/client/selection/selector_base.lua:115: in function '_mouse_cb'
	stonehearth/services/client/input/input_capture.lua:49: in function '_dispatch'
	stonehearth/services/client/input/input_service.lua:55: in function '_dispatch_input'
	stonehearth/services/client/input/input_service.lua:12: in function <stonehearth/services/client/input/input_service.lua:11>

3 posts were merged into an existing topic: Problems in the construction of the second floor Engine Error