Thanks for sharing this report!
Then I have great news for you because the issues you mentioned are all solved in the next update
I've dedicated all my time to stability improvements in 5.2.1 and the results are promising.
Expecting public release next week. Google is a bit slow in reviewing....
Ojalá lo solucionen, porque me he acostumbrado a planificar y navegar con MRA y he de decir que me encanta y no quisiera tener que volver a TomTom y su planificación de rutas vía web, que es menos efectiva.