I flashed the new version on my Xperia 10, also paid license and am having a very similar issue. I was able to install only some apps, Multimedia, Calendar, Calc. But everything else doesn’t work, no 3rd party apps, android support, or file browser can be installed, seems like a repository issue because trying to download aliendalvik from terminal returned that the package wasn’t found. Also tried the suggested solution of removing Jolla account, rebooting and signing in again without success.