Encountered a weird bug in #PokemonGo: It could find my location, loaded stops, gyms and Pokemon just fine, but wouldn’t show any map features like roads, parks or buildings.
It’s apparently a known issue with the current version of the app. Clearing the cache didn’t work. Neither did going into Advanced Settings & re-downloading the game data. What *did* work was deleting both the cache and the app data, and then re-signing in (and re-doing all my settings, but at least there aren’t too many).