Hey Everyone,
Same problem here, it looks like the last update somehow wiped access/rights for the Google apps, that are now not functional (maps and maps based apps like citymapper/Uber and so on, YouTube, Gmail, G agenda, G drive, etc)
I had installed GMS when I received my phone from Hong Kong, to install the Google apps, and it worked fine. But reinstalling it won't do a thing as it has to do with the latest update.
Having a look around, it looks like the only solution is to downgrade it or install a new rom, but the problem is that for that you would need to unroot the phone if I'm correct. But this action is not as easy as on western terminals, at least not free as far as I could see online.
It seems like this problem is only from Chinese originating terminals, so it shouldn't be an issue if you get a phone that was for the western market and should work fine, but I'm not 100% sure. Emui10 neither, but is unlikely.
Finally I contacted customer service and they told me that Chinese phones are not made for the western countries, that they don't provide global ROMs and that they deter people from flashing phones as it could "damage" the terminal... BS.
All in all, it's a great phone, but now I'm left without any solution and few to no developers to come up with a solution as it's kind of a "niche problem". There are probably solutions from Chinese Dev but of no help for us.
The lack of solutions online makes me realise that I have to probably have to get a new phone to carry on using Google apps, which we all became quite dependant from.
Let's wait and see if any dev comes up with something, but I doubt...