Something strange with Aaptive Cruise Control

We hadn't used our Karoq much before we wnt on holiday on 22nd June. On the way to Folkestone (or maybe the day before) we had a message about a software update, which I accepted. I rarely use the ACC as I don't like the way it manages speed, and since just after we got it, I managed to switch off the ACC, and just use it as cruise control. What I could do was to pull the switch at a speed I wanted to maintain and it would continue at that speed unless there were vehicles ahead. However, when I do this now, the car sets the CC to the speed limit and even if the setting is reduce, the next time the car reads a speed limit sign it resets to the new limit. Even when travelling down a dual carriageway, the car reacts to spped limits on slip roads, and in one case travelling on an Austrian autobahn, thought we were on a slip road and jammed on the brakes when it thought that there was a 60kph limit on it.

So I have gone from a situation where we had usable CC to where we have unusable ACC. I have tried to switch back to CC like I did when the car was new but I can't do it. So has anyone else had this happen after a software update? And have you managed to reset to ordinary CC? As I sidenote, in the 23 days we were away and using the car, we had a software update almost every day, sometimes more than once a day. I always accepted, but it didn't stop happening. Anyone else have this? I did wonder whether it wouldn't update because we were abroad.