S Health and UK Bus Checker Map not working

[AC Question]

Possibly since the upgrade to nougat, the map detail on S Health and UK Bus checker is not showing. On S Health, the track is left and all the functionality is working. On bus checker, the bus stop shows and the bus routes, but not the map detail, which is d a bit tricky if you are trying to find the bus stop. Even the little photo of the bus stop is showing.
I've had the phone checked at Carphone warehouse and the GPS signal and internet is connected- Google maps works correctly. They think there may be an incompatibility between the two apps when Maps updated last.