The mod Bulk Rail Loader 2.0 (2.0.1) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event railloader2::on_robot_built_entity (ID 14)
railloader2/control.lua:139: attempt to index local 'rail' (a nil value)
stack traceback:
railloader2/control.lua:139: in function 'create_entities'
railloader2/control.lua:203: in function <railloader2/control.lua:196>
(...tail calls...)
This happens when a blueprint is pasted it or the paste tool is used