When I look at who's near I get shown members in Skipton but I am in Newcastle. I tried refresh and this changed nothing. I checked on other apps and they show the correct location.
If you switch "Who's near" off and back on, is the location shown correct?
(54.98,-1.61 would be Newcastle, 53.96, -2.02 would be Skipton) Have you been to Skipton recently?