Sorry, no reply from our internal dev channel. I can see a difference between both crash logs.
LE 12: Program terminated with signal SIGBUS, Bus error.
LE 13: Program terminated with signal SIGSEGV, Segmentation fault.
Now I found something new, which is related to FFMPEG (LE 12 and LE 13 crash logs):
My theory is that some of your MP3s are encoded wrongly, and result in system crashes.
You can get correctly encoded MP3 files from the Kodi sample library.
Please try some of the correctly encoded MP3 files, and report back.