From the intersection of Hickman Road NW, Calabash, NC, the speed limit on Calabash Road NW/NC-1300 to Rt. 17 (Ocean Hwy) is 45 MPH, however, the app still has 55 MPH displayed.
The same issue also applies to McLamb Rd NW/NC-50 from the split at the intersection with Calabash Road NW/NC-1300 to the NC/SC state line, approximately 3/4 of a mile at which point the road becomes Mineola Ave/SC-50 and the speed limit increases to 55 MPH.
Please see attached images.