My top crash is
signal 11 (SIGSEGV), code 1 (SEGV_MAPERR)
libcorona.sobacktrace: native: pc 0000000000030c7c /data/app/com.spheregamestudios.designercity-1/lib/arm/libcorona.so native: pc 000000000002b6e4 /data/app/com.spheregamestudios.designercity-1/lib/arm/libcorona.so native: pc 000000000002e9f8 /data/app/com.spheregamestudios.designercity-1/lib/arm/libcorona.so (Java_com_ansca_corona_JavaToNativeShim_nativeDone+28) native: pc 0000000000937be5 /data/app/com.spheregamestudios.designercity-1/oat/arm/base.odex
For example: this one is crashing when trying to destroy connection between Java and Native side when application exiting. (why would google care about app crashing on exit? It exits anyway ffs, but it's not the point) Probably caused by referring variable which was already freed. It is rather hard to say why it is sometimes already freed but isn't so every time. We'll look into it.
Also, than you everyone for tracebacks. I created tickets and will take a look at them in nearest future (aka Monday). I can not guarantee that anything would be done, but we'll try fixing them.