There must be a problem with your config-file. When I started to use lapper I got all sorts of problem with not working functions etc. ect. One small mistake somewhere in the config-file, screws other functions later on. Try again with a clean file and edit bit by bit, try it, if okay, edit another section and so on.
@Gai-Luron: Is a new version of lapper in progress at the moment and if so, what can we expect from it? I made several suggestions and asked some questions in the last couple of months but you didn't respond to it