Yep happens to me in my 2020 NX.
Certain parts of mu commute the onboard map shows the correct speed limit, but the dash gizmo thinks that I'm in a 30, when it's 40, 20 when in a 30, but the worst one, for no particular reason on one stretch it's 30 through town, and for 1/2 a mile it thinks I'm in a 10!
Imaging the braking from 30 down to 10 on a limiter, pile up ensues !!!!!