[NLA] Dev-2598 Error when trying to place custom building

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I built a building and wanted to save it and copy it somewhere else, but when I try to place it I get this:

develop-2598 (x64)
stonehearth/lib/build_util.luac:200: assertion failed!
stack traceback:
	[C]: ?
	[C]: in function 'assert'
	stonehearth/lib/build_util.luac:200: in function 'unpack_entity_table'
	stonehearth/components/column/column_component.luac:42: in function 'load_from_template'
	stonehearth/lib/build_util.luac:44: in function 'load_structure_from_template'
	stonehearth/lib/build_util.luac:48: in function 'load_all_structures_from_template'
	stonehearth/lib/build_util.luac:50: in function 'load_all_structures_from_template'
	stonehearth/lib/build_util.luac:170: in function 'restore_template'
	...th/services/client/build_editor/template_editor.luac:11: in function '_restore_template'
	...th/services/client/build_editor/template_editor.luac:20: in function 'go'
	...rvices/client/build_editor/build_editor_service.luac:39: in function <...rvices/client/build_editor/build_editor_service.luac:39>