Hey there, @darkGrimoire 
Welcome to the Netlify Forums. Thanks for writing such a detailed post about this. I have closed the other threads that you opened (here and here) so that we can focus the conversation in one place. This will ensure that individuals to not respond to multiple posts with similar or the same information.
Have you taken a look at our redirects debugging guide as well as our Docs? These would be good places to start if you have not 