In my experience if the satnav ,,any make of satnav , is telling you to take a road that signs forbid its often driver error, not a problem with updates. Highways authorities do sometimes change one way system priorities etc but often its because you are actually trying to turn into the wrong road. I sometimes need to double check the route by glancing at the satnav map and countdown distances, only to find its not that junction , but the next one or previous one.
Ultimately the driver needs to remain alert and in charge of the reality of road priorities (and traffic and crossing pedestrians etc) not slavishly follow what the satnav tells them to do. In particular I find satnavs sometimes imply you go straight ahead at a junction, without mentioning you need to give way.