Musescore 3.0.2 crash
Opening a certain score (in MSCZ format) will cause MS3 to crash, although the file was saved with MS3 and can be handled with other programs (Xarchiver, unzip the mscx file and successfully open it with Leafpad etc.). MS3 will close upon opening the score, but will show the preview in the Open Score dialog.
Attached is a /var/log/syslog snippet related to the incident.
Feb 8 20:29:41 [uname -n] kernel: [108267.499147] traps: mscore-portable general protection ip:e183f1 sp:7fff3af820f0 error:0
Feb 8 20:29:41 [uname -n] kernel: [108267.499156] in mscore-portable[400000+193b000]
System: Linux 4.9.0-8-amd64 #1 SMP Debian 4.9.130-2 (2018-10-27) x86_64 GNU/Linux