I only get them when my program closes and I never got a "creating an additional visibility list" message. I'm using neither the ShadowHelper nor the ReflectionHelper. Is something wrong?
That's normal. There is at least one visibility list by default without any logging.
What about the WorldProcessors? I also get two of those:
New WorldProcessor created using 1 thread(s) and granularity of 1!
Creating new world processor buffer for thread main
New WorldProcessor created using 1 thread(s) and granularity of 1!
Creating new world processor buffer for thread main
Then you are creating multiple worlds. Either directly or indirectly by using the SkyBox class.
Oh, then it's just the SkyBox. Thanks.