Comment 6 for bug 1971435

I can confirm this bug too

Device: HP Elitebook 840 G5 (with Factory LTE Modem)
Modem: Bus 001 Device 002: ID 03f0:a31d HP, Inc HP lt4132 LTE/HSPA+ 4G Module
network-manager 1.36.6-0ubuntu2
modem-manager-GUI 0.0.20-3
Kernel Linux 5.15.0-43-generic x86_64
Version 22.04 LTS (Jammy Jellyfish) 64-bit
KDE 5.24.4 (Kubuntu 22.04)

user@local:~$ modem-manager-gui
Connection manager: Network Manager >= 0.9.0
Modem manager: Modem Manager >= 0.7.0
Segmentation fault at address: 0x20
Stack trace:
1. /lib/x86_64-linux-gnu/libglib-2.0.so.0(g_bit_lock+0x50) [0x7f2e99148540]
2. /lib/x86_64-linux-gnu/libglib-2.0.so.0(g_bit_lock+0x50) [0x7f2e99148540]
3. /lib/x86_64-linux-gnu/libglib-2.0.so.0(g_variant_n_children+0x1d) [0x7f2e991c237d]
4. /usr/lib/x86_64-linux-gnu/modem-manager-gui/modules/libmodcm_nm09.so(+0x3bc0) [0x7f2e94f10bc0]
5. modem-manager-gui(mmguicore_connections_enum+0x6d) [0x55c1aa1edd4d]
6. modem-manager-gui(+0x4a520) [0x55c1aa20e520]
7. modem-manager-gui(mmguicore_devices_open+0x1c0) [0x55c1aa1f2f90]
8. modem-manager-gui(+0x415d2) [0x55c1aa2055d2]
9. modem-manager-gui(+0x4a7a2) [0x55c1aa20e7a2]
user@local:~$