Maybe someone can help us with tutorial on how to get debug symbols into your backtraces...
pkcon install glibc-debuginfo
[nemo@Sailfish ~]$ mapbox-sfos [D] unknown:0 - Using Wayland-EGL [W] unknown:0 - Could not find any zN.M subdirs! [W] unknown:0 - Theme dir "/usr/share/themes/jolla-ambient/meegotouch/z1.0/" does not exist