Just got my OnePlus 6 yesterday and I'm already having an issue with it. As of today, I cannot download or update apps from the Play Store. They are just perpetually stuck in the "Downloading" state (screenshot below). I'm also getting the "Google Play Services won't run unless you update Google Play Services" notification from time to time. I've cleared cache and data, reset app preferences, and manually downloaded the latest Google Play Services APK, but it's still having the same problem. I've read guides that suggest uninstalling Play Services updates, then updating it again, but it isn't showing up in the device administrators list so I can deactivate it before I do that.
My phone is rooted through Magisk and has the bootloader unlocked.
Any help or suggestions would be appreciated.