Backup and then factory reset your device. Sounds like there’s fragmentation left over from the old OS install conflicting with the new OS. These things happen. Wipe it and see if the symptoms continue.

Where’s Toronto?

http://www.bodyposipanda.com/2017/07/what-to-do-if-you-just-cant-love-your.html?m=1

I like red and you prefer blue. Still confused?

If you don't want the "third-party developer" nonsense you're complaining about, that's why the Nexus product line exists straight from the source of the Android creators: Google.

Actually there is a London in Canada.