Open map. Open a bus stop. See timetables. Click back. No crashes.
Type bus stop "40". Click the new icon to open the map. Back. Click again the new icon to see the map. Back. No crashes.
Open lines. Select 4N. Open a bus stop. Open its timetable. It works. Click the new icon to see the map. It works. Back. It works. Back again. It works (bus line). Back again. Lines. Click back 10000 times. It works. App closes.
Open the map. Set map in background. Reopen. It works.