Map causing app to crash

I am trying to use the map object to get the user's gps latitude and longitude to be able to submit it to FourSquare using their REST API. However when I open the app, it sometimes causes the app to crash. Probably out of 5 tries, it will happen 3 times. I'm assuming it has to be a memory issue, but I'm not certain.

Here is what I have for my code:

<datasources>


        <datasource name="geo" source="standard" query="location" distanceFilter="1" providertype="location" />


</datasources>


<main>


        <map name="map" alias="MAP" datasource="geo" xpos="350" width="50" height="50" type="satellite" showuser="yes" currentlocation="yes"></map>


</main>


<actions>


        <action name="enter-amount">


            <sync>  


                <assign property="datasource:geo.location" value="on"/>


                <assign property="object:MAP.region" value="[object:MAP.gpslatitude] [object:MAP.gpslongitude] [object:MAP.gpslatitude] [object:MAP.gpslongitude]"/>


                <assign property="var:latitude" value="[object:MAP.gpslatitude]" />


                <assign property="var:longitude" value="[object:MAP.gpslongitude]" />  


            </sync>


            <assign property="var:tipCalculated" value="" />


        </action>


</actions>