(1) I'm not going to dig any more into your task; I could not care less what the task is. But if you happen to be developing a PRNG and you do find any patterns, then it IS a programming error. A common one, an important one, but a flaw nonetheless.

(2) I downvoted you for your last sentence. I think your whole thread smacks of being frustrated, and you're letting it get the best of you. Think rationally, not emotionally, and you wouldn't be in this situation. This is a forum, and you brought your frustration to the forum. Don't tell us to shut up. I don't care how you vote my response, but keep the discourse civil, thanks.