There is no problem, what you experience is a feature of OSM. You can use the Google Maps Static API instead of the Map control. 
1 - the Map component uses OpenStreetMap tiles, not Google Map tiles.
2 - the tiles are based on USGS surveys in the USA and other sources outside the USA. The ability to zoom tiles depends on the map base. Outside the USA the maps are not as detailed so users cannot zoom the maps as in the USA, especially when using Terrain and Aerial MapType. Users can zoom the most using Roads. See Map组件中roads类型地图无法显示 - Roads type map in Map component cannot be displayed (in Mainland China) - #4 by SteveJG
3. An example showing how to use OSM without the Map Component
4. The Map component works in most countries (possibly not in mainland China).
5. There are other map generating api's:
- Google .. Use the Google Map Static api or you could do this [INTRO] 🗺️ Google Maps With App Inventor! using a work around and not the Static Map api.
- Amazon
- Microsoft (Bing)
- others