I think it was the update to 4.5.16 that broke the Android read/write permissions. In my case on an Xperia 10 III. The update to 4.6 went fine but the issue is still present.
Will this issue still be addressed, fixed?
An example issue from back then would be: [4.5.0.16][10II] Android App Spotify is not able to use SD Card
This is very frustrating, years back an update broke the permissions on my Xperia X.