Everything worked fine for months and months. Inside sandboxed profile—don't think I changed anything myself, but auto updates and auto remove permissions seem to be enabled by default. Can install updates perfectly fine, however cannot install new apps. No popup for install, only 'Installing...' followed long after by popup 'can't install {app} see common ways to resolve this blah blah' however there is a gmscompat notification (not popup) upon downloading the app's files when installing in the play store 'Action required in play store' but clicking on this just pulls up google play store with no further prompt for action to be taken.
I have tried everything short of deleting the profile and making a new one, surely this must be resolvable without doing so.