gnome-shell crashed with SIGABRT: mutter:ERROR:../src/x11/group.c:75:meta_group_new: assertion failed: (g_hash_table_lookup (x11_display->groups_by_leader, &group_leader) == NULL)

[Eric Adams]

I am using the Reaper DAW on Ubuntu 20.04. I was trying to save a project when the system froze for a few seconds and then the shell refreshed/restarted. This is the resulting bug report.

ProblemType: Crash
DistroRelease: Ubuntu 20.04
Package: gnome-shell 3.35.91-1ubuntu2
Uname: Linux 5.5.7-050507-generic x86_64
ApportVersion: 2.20.11-0ubuntu18
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Mar 5 20:30:34 2020
DisplayManager: gdm3
ExecutablePath: /usr/bin/gnome-shell
InstallationDate: Installed on 2020-03-03 (2 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200303)
ProcCmdline: /usr/bin/gnome-shell
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, user)
 SHELL=/bin/bash
 XDG_RUNTIME_DIR=<set>
RelatedPackageVersions: mutter-common 3.35.91-1ubuntu1
Signal: 6
SourcePackage: gnome-shell
StacktraceTop:
 () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_assertion_message_expr () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
 () at /lib/x86_64-linux-gnu/libmutter-6.so.0
 meta_window_compute_group () at /lib/x86_64-linux-gnu/libmutter-6.so.0
 () at /lib/x86_64-linux-gnu/libmutter-6.so.0
Title: gnome-shell crashed with SIGABRT
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dip input kvm libvirt lpadmin lxd plugdev sambashare sudo vboxusers
separator:

[Apport retracing service (apport)]

StacktraceTop:
 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
 __GI_abort () at abort.c:79
 g_assertion_message.cold () from /tmp/apport_sandbox_0vh0z4sh/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0.6305.0
 g_assertion_message_expr () from /tmp/apport_sandbox_0vh0z4sh/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0.6305.0
 meta_group_new (x11_display=x11_display@entry=0x555986798b00, group_leader=<optimized out>) at ../src/x11/group.c:75

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1674172, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.