I have noticed that since updating my Asus TF300T to Android 4.2.1 (official stock rom) I no longer receive delta updates (i.e. where only changes are downloaded instead of the complete file). Before the update it worked perfectly (on Android 4.1.2). The device is NOT rooted.
I have tried resetting the store's data, rolling back the store updates, and disabling the new app auto-scan. None of these worked :(
Is anyone else experiencing this on the Asus tablet, or any other Android 4.1+ device?
Update (29 Mar 2013): I have been checking this every day since posting, and finally today it seems that delta updates are working again. I guess it was a server side problem because the store was not updated on my device and I made no other changes anywhere.
Update (30 Mar 2013): And today I'm back to full updates :( This does seem to be a server side issue though; not sure if it affects any other versions/devices. If anyone on any 4.1+ build (any device) could indicate whether they have problems with it that would be great :)