Download 20.5 apk

Where can I download previous versions? I checked the kodi.tv download page but they don’t have older versions for some reason.
I upgraded a Shield and can’t get 21 to show my library for some reason and just want to roll back for now.
I still have 20.5 on a second Nvidia shield and everything is fine.
21 wouldn’t show my library on Windows for me either for some reason but when I went back to 20 everything was fine.