There are many reasons why manifestation processes may not be working for you. Here is one reason to consider:
Your manifestation process overflows into the whole of creation, so it affects everyone’s life. Therefore, the manifestation of your desires is not only about you. It has an impact on collective destiny. If the process and potential outcome of your manifestation process is likely to affect even one other person’s destiny in an adverse manner, then it will not be good for you either, and so your manifestation process will be unsuccessful.