This question has been answered by srgudvin. See the first response.
DonQuicky, since you mentioned VersionX, I decided to delete the add on completely. Unfortunately that did not work.
LK, SEO is enabled. How do I check that two or more urls are conflicting? When I do "refresh URIs" there is no errors on conflicting URLs
DonQuicky, yes, completely removed VersionX and cleared core/cache. Any other trick up your sleeves?
LK, do you mean if friendly alias path is enabled? If so, yes its enabled.