React Native MapView not showing on iOS standalone build

I am using MapView from react-native-maps. I've gone ahead and built standalone apps for both iOS and Android.

I've followed Expo's documentation regarding MapView with standalone apps.

After building the project, the standalone Android version works perfectly fine but iOS only slightly works. As you can see in the picture the Marker shows but not the underlying map. Any ideas why?

iOS Image:

MapView Code:

<MapView
  style={styles.map}
  customMapStyle={mapStyle}
  provider={PROVIDER_GOOGLE}
  initialRegion={region}
  showsMyLocationButton={false}
  followsUserLocation={true}
  showsUserLocation
  radius={Dimensions.get("window").width * 0.08}
  minZoomLevel={3}
  maxZoomLevel={20}
  rotateEnabled={false}
  pitchEnabled={false}
  onPress={() => Keyboard.dismiss()}
>
  {locations &&
    locations
      .filter((location) => location.data.status === "live")
      .map((location, index) => {
        return (
          <Marker
            coordinate={{
              latitude: location.data.lat,
              longitude: location.data.long,
            }}
            onPress={() =>
              navigation.navigate("LocationScreen", { location })
            }
            key={index}
          >
            <View style={styles.markerContainer}>
              <Text
                style={styles.text}
                numberOfLines={1}
                adjustsFontSizeToFit
              >
                {location.data.name}
              </Text>
            </View>
          </Marker>
        );
      })}
</MapView>