I am sorry, rinigus I used Pure Maps again after a long gap, to get me to an address about 25 minutes away*) and guess what? The perennial issue with the hang background process after closing the UI popped its ugly head again This was on an Xperia X, with no other foreground processes running, so I cannot use an excuse of low resources.

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*) Pure Maps said 12 minutes, Bing said 21. Bing was much closer to reality. It was by no means the first time that Pure Maps severely underestimated the journey duration, but that is a topic for a whole other discussion.