Regardless, with the update to 5.0.0.76, it started it working yet again. Just as with the previous update to 5.0.0.73, although there is no mention of relevant AAS changes for my Xperia 10 V this time.
So, will the issue return in a few weeks? Time will tell. I will mark it as fixed if 5.1 is out and it is all still good. I can keep marking and then unmarking updates as solutions 