My device (Xperia Active) downloaded the latest version of Navigator from the play store automatically and the app has no crashed half a dozen times, when i tried to find a route (using a bike profile) at different actions as show place on map, calculation a route and so forth.
I even uninstalled and reinstalled it.
It first halts with a white screen and then i am asked, that Navigator does not answer, if i want to stop it.
I have found an old version on my phone (1.0.48) and will try if this one works.