I’m sure this is relevant, but I’m not sure if it is helpful, from the the systemd journal:
Time: Jan 07 06:26:05
Source: systemd-coredum[3419]
Message: Process 31773 (gnome-shell) of user 1000 dumped core.
Stack trace of thread 31773:
#0 0x00007fe203df6170 raise (libpthread.so.0)
#1 0x000055a0675d1c6b n/a (gnome-shell)
#2 0x00007fe203df62d0 __restore_rt (libpthread.so.0)
#3 0x00007fe203a61520 raise (libc.so.6)
#4 0x00007fe203a62b01 abort (libc.so.6)
#5 0x00007fe205bbcd1d g_assertion_message (libglib-2.0.so.0)
#6 0x00007fe205bbcdaa g_assertion_message_expr (libglib-2.0.so.0)
#7 0x00007fe2035e153c n/a (libst-1.0.so)
#8 0x00007fe205e7732c g_object_run_dispose (libgobject-2.0.so.0)
#9 0x00007fe204800076 clutter_actor_destroy (libmutter-clutter-1.so)
#10 0x00007fe1ffa826bd n/a (libffi.so.7)
#11 0x00007fe1ffa81bcf n/a (libffi.so.7)
#12 0x00007fe204b43490 n/a (libgjs.so.0)
#13 0x00007fe204b44c64 n/a (libgjs.so.0)
#14 0x00007fe1fc8c2d7c n/a (libmozjs-52.so)
#15 0x00007fe1fc8bd466 n/a (libmozjs-52.so)
#16 0x00007fe1fc8c281e n/a (libmozjs-52.so)
#17 0x00007fe1fc8c2b82 n/a (libmozjs-52.so)
#18 0x00007fe1fcb130b2 n/a (libmozjs-52.so)
#19 0x00003074822b6a96 n/a (n/a)