Both me and my wife taught Siri how to correctly pronounce our names, but we find that the new names never 'stick'. It appears that new/corrected pronunciations would work for a while and then they reset or in some cases, some devices would never recognize the corrected pronunciations at all. What is the right way to fix the pronunciations for good, so they consistent across iPhones, iPads, HomePods etc? Is there a specific order?