Google rating seems to be in the lap from the gods. I got a good google rating on probably my sites inside weeks whilst in another I struggle, I know how to handle it and do it but no always work.
Welcome to the world of SEO.
Merely Google knows how it works.
yes we don’t know what will they certainly but what i’m asuming that there may be some technical issues related to the ranking. No-one can predict there decision towards ranking of a website, as there are many web-masters who are constantly earning a living for the position on the search engines, so can’t assist. But still you must try google assistance centers, these people will help you for your concern problem you will be facing.