worker should add error to tile object
worker should add error to tile object

taylorhxu/tangram,DHaylock/tangram,tangrams/tangram,xvilan/tangram,DHaylock/tangram,DHaylock/tangram,TitoAgudelo/tangram,tangrams/tangram,rosamcgee/tangram,ceseale/tangram,taylorhxu/tangram,xvilan/tangram,zerebubuth/tangram,xvilan/tangram,zerebubuth/tangram,taylorhxu/tangram,zerebubuth/tangram,ceseale/tangram,ceseale/tangram,TitoAgudelo/tangram,TitoAgudelo/tangram,rosamcgee/tangram,rosamcgee/tangram