qt5ct, qt6ct, keepassxc are quitting. Running Manjaro Linux with i3, updates are installed. No missing library (checked with ldd). Problem maybe: ~ is from previous install (arcolinux). Thanx for any help!
Hello @macspyral and wlcome to the Manjaro Community! 
It will of course help if you provide some system information. Could you provide the output of this Terminal command? (quick guide below):
inxi -zv8
Note that the output produced by this command is privacy-filtered.
Please also remember to use proper code formatting as this makes it much easier to read on the Forum:
[Mini How-To] format code or command output
Select and copy all the text in the Terminal window (minus the prompt, if you are using zsh).
Then paste the output in between two lines containing three backticks
```
or three tildes
~~~
Or:
Copy & paste, then highlight the pasted text and click the </> button at the top of the reply window (easier for smaller outputs).
Cheers! 
Thank you for Your quick respones, output follows (hope I do it right):
System:
Kernel: 6.18.38-1-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 16.1.1
clocksource: tsc avail: acpi_pm
parameters: BOOT_IMAGE=/boot/vmlinuz-6.18-x86_64
root=
security=apparmor udev.log_priority=3
Desktop: i3 v: 4.25.1 with: i3bar tools: avail: i3lock,
xfce4-screensaver, xss-lock vt: 7 dm: LightDM v: 1.32.0 Distro: Manjaro
base: Arch Linux
Machine:
Type: Laptop System: LENOVO product: 21HM004HGE v: ThinkPad X1 Carbon Gen 11
serial: <superuser required> Chassis: type: 10 serial: <superuser required>
Mobo: LENOVO model: 21HM004HGE v: SDK0T76530 WIN
serial: <superuser required> part-nu: LENOVO_MT_21HM_BU_Think_FM_ThinkPad
X1 Carbon Gen 11 uuid: <superuser required> Firmware: UEFI vendor: LENOVO
v: N3XET54W (1.29 ) date: 05/13/2024
Battery:
ID-1: BAT0 charge: 57 Wh (99.1%) condition: 57.6/57 Wh (101%) volts: 17.13
min: 15.44 model: Sunwoda 5B11M90058 type: Li-poly serial: <filter>
charging: status: full control: start: 0% end: 100% cycles: 45
Memory:
System RAM: total: 16 GiB available: 15.28 GiB used: 1.02 GiB (6.7%)
Message: For most reliable report, use superuser + dmidecode.
Array-1: capacity: 16 GiB slots: 8 modules: 8 EC: None
max-module-size: 2 GiB note: est.
Device-1: Controller0-ChannelA type: LPDDR5 detail: synchronous
size: 2 GiB speed: 6400 MT/s volts: curr: 0.5 width (bits): data: 16
total: 16 manufacturer: Micron Technology part-no: MT62F1G32D2DS-026 WT
serial: N/A
Device-2: Controller0-ChannelB type: LPDDR5 detail: synchronous
size: 2 GiB speed: 6400 MT/s volts: curr: 0.5 width (bits): data: 16
total: 16 manufacturer: Micron Technology part-no: MT62F1G32D2DS-026 WT
serial: N/A
Device-3: Controller0-ChannelC type: LPDDR5 detail: synchronous
size: 2 GiB speed: 6400 MT/s volts: curr: 0.5 width (bits): data: 16
total: 16 manufacturer: Micron Technology part-no: MT62F1G32D2DS-026 WT
serial: N/A
Device-4: Controller0-ChannelD type: LPDDR5 detail: synchronous
size: 2 GiB speed: 6400 MT/s volts: curr: 0.5 width (bits): data: 16
total: 16 manufacturer: Micron Technology part-no: MT62F1G32D2DS-026 WT
serial: N/A
Device-5: Controller1-ChannelA type: LPDDR5 detail: synchronous
size: 2 GiB speed: 6400 MT/s volts: curr: 0.5 width (bits): data: 16
total: 16 manufacturer: Micron Technology part-no: MT62F1G32D2DS-026 WT
serial: N/A
Device-6: Controller1-ChannelB type: LPDDR5 detail: synchronous
size: 2 GiB speed: 6400 MT/s volts: curr: 0.5 width (bits): data: 16
total: 16 manufacturer: Micron Technology part-no: MT62F1G32D2DS-026 WT
serial: N/A
Device-7: Controller1-ChannelC type: LPDDR5 detail: synchronous
size: 2 GiB speed: 6400 MT/s volts: curr: 0.5 width (bits): data: 16
total: 16 manufacturer: Micron Technology part-no: MT62F1G32D2DS-026 WT
serial: N/A
Device-8: Controller1-ChannelD type: LPDDR5 detail: synchronous
size: 2 GiB speed: 6400 MT/s volts: curr: 0.5 width (bits): data: 16
total: 16 manufacturer: Micron Technology part-no: MT62F1G32D2DS-026 WT
serial: N/A
PCI Slots:
Permissions: Unable to run dmidecode. Root privileges required.
CPU:
Info: model: 13th Gen Intel Core i5-1335U bits: 64 type: MST AMCP
arch: Raptor Lake level: v3 note: check built: 2022+ process: Intel 7 (10nm)
family: 6 model-id: 0xBA (186) stepping: 3 microcode: 0x6134
Topology: cpus: 1x dies: 1 clusters: 4 cores: 10 threads: 12 mt: 2 tpc: 2
st: 8 smt: enabled cache: L1: 928 KiB desc: d-8x32 KiB, 2x48 KiB; i-2x32
KiB, 8x64 KiB L2: 6.5 MiB desc: 2x1.2 MiB, 2x2 MiB L3: 12 MiB
desc: 1x12 MiB
Speed (MHz): avg: 400 min/max: 400/4600:3400 scaling: driver: intel_pstate
governor: powersave cores: 1: 400 2: 400 3: 400 4: 400 5: 400 6: 400 7: 400
8: 400 9: 400 10: 400 11: 400 12: 400 bogomips: 59904
Flags: 3dnowprefetch abm acpi adx aes aperfmperf apic arat
arch_capabilities arch_lbr arch_perfmon art avx avx2 avx_vnni bmi1 bmi2
bts clflush clflushopt clwb cmov constant_tsc cpuid cpuid_fault cx16 cx8
de ds_cpl dtes64 dtherm dts epb ept ept_ad erms est f16c flexpriority
flush_l1d fma fpu fsgsbase fsrm fxsr gfni hfi ht hwp hwp_act_window
hwp_epp hwp_notify hwp_pkg_req ibpb ibrs ibrs_enhanced ibt ida intel_pt
invpcid lahf_lm lm mca mce md_clear mmx monitor movbe movdir64b movdiri
msr mtrr nonstop_tsc nopl nx ospke pae pat pbe pcid pclmulqdq pdcm
pdpe1gb pebs pge pku pln pni popcnt pse pse36 pts rdpid rdrand rdseed
rdtscp rep_good sdbg sep serialize sha_ni smap smep smx split_lock_detect
ss ssbd sse sse2 sse4_1 sse4_2 ssse3 stibp syscall tm tm2 tpr_shadow tsc
tsc_adjust tsc_deadline_timer tsc_known_freq umip user_shstk vaes vme vmx
vnmi vpclmulqdq vpid waitpkg x2apic xgetbv1 xsave xsavec xsaveopt xsaves
xtopology xtpr
Vulnerabilities:
Type: gather_data_sampling status: Not affected
Type: ghostwrite status: Not affected
Type: indirect_target_selection status: Not affected
Type: itlb_multihit status: Not affected
Type: l1tf status: Not affected
Type: mds status: Not affected
Type: meltdown status: Not affected
Type: mmio_stale_data status: Not affected
Type: old_microcode status: Not affected
Type: reg_file_data_sampling mitigation: Clear Register File
Type: retbleed status: Not affected
Type: spec_rstack_overflow status: Not affected
Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via
prctl
Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
sanitization
Type: spectre_v2 mitigation: Enhanced / Automatic IBRS; IBPB:
conditional; PBRSB-eIBRS: SW sequence; BHI: BHI_DIS_S
Type: srbds status: Not affected
Type: tsa status: Not affected
Type: tsx_async_abort status: Not affected
Type: vmscape mitigation: IBPB before exit to userspace
Graphics:
Device-1: Intel Raptor Lake-P [Iris Xe Graphics] vendor: Lenovo driver: i915
v: kernel alternate: xe arch: Xe process: Intel 7 (10nm) built: 2022+ ports:
active: DP-5,eDP-1 empty: DP-1, DP-2, DP-3, DP-4, DP-6, DP-7, HDMI-A-1
bus-ID: 00:02.0 chip-ID: 8086:a7a1 class-ID: 0300
Device-2: Luxvisions Innotech Integrated RGB Camera driver: uvcvideo
type: USB rev: 2.0 speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 3-8:5
chip-ID: 30c9:0052 class-ID: fe01 serial: <filter>
Display: x11 server: X.org v: 1.21.1.24 driver: X: loaded: modesetting
alternate: fbdev,vesa dri: iris gpu: i915 display-ID: :0 screens: 1
Screen-1: 0 s-res: 3840x1200 s-size: <missing: xdpyinfo>
Monitor-1: DP-5 mapped: DP-3-1 pos: right model: Idek Iiyama X2485
serial: <filter> built: 2012 res: mode: 1920x1200 hz: 60 scale: 100% (1)
dpi: 94 gamma: 1.2 chroma: red: x: 0.639 y: 0.329 green: x: 0.310 y: 0.627
blue: x: 0.153 y: 0.071 white: x: 0.314 y: 0.329
size: 518x324mm (20.39x12.76") diag: 611mm (24.1") ratio: 16:10
modes: 1920x1200, 1920x1080, 1600x1200, 1680x1050, 1280x1024, 1440x900,
1024x768, 800x600, 640x480, 720x400
Monitor-2: eDP-1 pos: primary,left model: AU Optronics 0xd291 built: 2020
res: mode: 1920x1200 hz: 60 scale: 100% (1) dpi: 162 gamma: 1.2 chroma: red:
x: 0.651 y: 0.337 green: x: 0.294 y: 0.612 blue: x: 0.137 y: 0.051 white:
x: 0.314 y: 0.341 size: 301x188mm (11.85x7.4") diag: 355mm (14")
ratio: 16:10 modes: 1920x1200
API: EGL v: 1.5 hw: drv: intel iris platforms: device: 0 drv: iris
device: 1 drv: swrast gbm: drv: iris surfaceless: drv: iris x11: drv: iris
inactive: wayland
API: OpenGL v: 4.6 vendor: intel mesa v: 26.1.4-arch1.1 glx-v: 1.4
direct-render: yes renderer: Mesa Intel Iris Xe Graphics (RPL-U)
device-ID: 8086:a7a1 memory: 14.92 GiB unified: yes
Info: Tools: api: eglinfo,glxinfo de: xfce4-display-settings
x11: xprop,xrandr
Audio:
Device-1: Intel Raptor Lake-P/U/H cAVS vendor: Lenovo
driver: sof-audio-pci-intel-tgl alternate: snd_soc_avs,
snd_sof_pci_intel_tgl, snd_hda_intel bus-ID: 00:1f.3 chip-ID: 8086:51ca
class-ID: 0403
Device-2: Lenovo USB-C Dock USB Audio
driver: hid-generic,snd-usb-audio,usbhid type: USB rev: 2.0 speed: 12 Mb/s
lanes: 1 mode: 1.1 bus-ID: 3-3.2:6 chip-ID: 17ef:3103 class-ID: 0300
serial: <filter>
API: ALSA v: k6.18.38-1-MANJARO status: kernel-api with: aoss
type: oss-emulator tools: alsactl,alsamixer,amixer
Server-1: sndiod v: N/A status: off tools: aucat,midicat,sndioctl
Server-2: JACK v: 1.9.22 status: off tools: N/A
Server-3: PipeWire v: 1.6.7 status: active with: 1: pipewire-pulse
status: active 2: wireplumber status: active 3: pipewire-alsa type: plugin
tools: pactl,pw-cat,pw-cli,wpctl
Network:
Device-1: Intel Raptor Lake PCH CNVi WiFi driver: iwlwifi v: kernel
bus-ID: 00:14.3 chip-ID: 8086:51f1 class-ID: 0280
IF: wlp0s20f3 state: up mac: <filter>
IP v4: <filter> type: dynamic noprefixroute scope: global
broadcast: <filter>
IP v6: <filter> type: dynamic noprefixroute scope: global
IP v6: <filter> type: noprefixroute scope: link
Device-2: Realtek RTL8153 Gigabit Ethernet Adapter driver: r8152 type: USB
rev: 3.2 speed: 5 Gb/s lanes: 1 mode: 3.2 gen-1x1 bus-ID: 2-3.1:3
chip-ID: 0bda:8153 class-ID: 0000 serial: <filter>
IF: enp0s13f0u3u1 state: up speed: 100 Mbps duplex: full mac: <filter>
IP v4: <filter> type: dynamic noprefixroute scope: global
broadcast: <filter>
IP v6: <filter> type: dynamic noprefixroute scope: global
IP v6: <filter> type: noprefixroute scope: link
Info: services: NetworkManager, sshd, systemd-timesyncd, wpa_supplicant
WAN IP: <filter>
Bluetooth:
Device-1: Intel AX211 Bluetooth driver: btusb v: 0.8 type: USB rev: 2.0
speed: 12 Mb/s lanes: 1 mode: 1.1 bus-ID: 3-10:7 chip-ID: 8087:0033
class-ID: e001
Report: rfkill ID: hci0 rfk-id: 2 state: up address: see --recommends
Logical:
Message: No logical block device data found.
RAID:
Message: No RAID data found.
Drives:
Local Storage: total: 931.51 GiB used: 272.31 GiB (29.2%)
SMART Message: Required tool smartctl not installed. Check --recommends
ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Samsung
model: SSD 970 EVO Plus 1TB size: 931.51 GiB block-size: physical: 512 B
logical: 512 B speed: 31.6 Gb/s lanes: 4 tech: SSD serial: <filter>
fw-rev: 4B2QEXM7 temp: 35.9 C scheme: GPT
Message: No optical or floppy data found.
Partition:
ID-1: / raw-size: 91.27 GiB size: 89.28 GiB (97.82%) used: 24.97 GiB (28.0%)
fs: ext4 dev: /dev/nvme0n1p1 maj-min: 259:1 label: N/A
uuid: 3f475214-b9f0-47e4-8021-222837b24c12
ID-2: /boot/efi raw-size: 1.95 GiB size: 1.95 GiB (99.80%)
used: 488 KiB (0.0%) fs: vfat dev: /dev/nvme0n1p2 maj-min: 259:2 label: N/A
uuid: 08AA-813A
ID-3: /home raw-size: 838.29 GiB size: 824.06 GiB (98.30%)
used: 247.33 GiB (30.0%) fs: ext4 dev: /dev/nvme0n1p3 maj-min: 259:3
label: N/A uuid: 7863bd8b-bbe0-45ea-a77f-35b81266592a
Swap:
Alert: No swap data was found.
Unmounted:
Message: No unmounted partitions found.
USB:
Hub-1: 1-0:1 info: hi-speed hub with single TT ports: 1 rev: 2.0
speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
class-ID: 0900
Hub-2: 2-0:1 info: super-speed hub ports: 4 rev: 3.1
speed: 20 Gb/s (2.33 GiB/s) lanes: 2 mode: 3.2 gen-2x2 chip-ID: 1d6b:0003
class-ID: 0900
Hub-3: 2-3:2 info: Lenovo USB3.1 Hub ports: 4 rev: 3.2
speed: 10 Gb/s (1.16 GiB/s) lanes: 1 mode: 3.2 gen-2x1 chip-ID: 17ef:30fe
class-ID: 0900
Device-1: 2-3.1:3 info: Realtek RTL8153 Gigabit Ethernet Adapter
type: Network driver: r8152 interfaces: 1 rev: 3.2
speed: 5 Gb/s (596.0 MiB/s) lanes: 1 mode: 3.2 gen-1x1 power: 112mA
chip-ID: 0bda:8153 class-ID: 0000 serial: <filter>
Hub-4: 2-3.3:4 info: Lenovo USB3.1 Hub ports: 4 rev: 3.2
speed: 10 Gb/s (1.16 GiB/s) lanes: 1 mode: 3.2 gen-2x1 chip-ID: 17ef:3100
class-ID: 0900
Hub-5: 3-0:1 info: hi-speed hub with single TT ports: 12 rev: 2.0
speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
class-ID: 0900
Hub-6: 3-3:2 info: Lenovo USB2.0 Hub ports: 3 rev: 2.0
speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 17ef:3102
class-ID: 0900
Hub-7: 3-3.1:4 info: Lenovo USB2.0 Hub ports: 4 rev: 2.1
speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 17ef:30ff
class-ID: 0900
Hub-8: 3-3.1.3:9 info: Lenovo USB2.0 Hub ports: 4 rev: 2.1
speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 17ef:3101
class-ID: 0900
Hub-9: 3-3.1.3.2:34 info: Genesys Logic Hub ports: 4 rev: 2.1
speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 power: 100mA
chip-ID: 05e3:0610 class-ID: 0900
Device-1: 3-3.1.3.2.1:35 info: Corsair Gaming K65 RGB RAPIDFIRE Keyboard
type: keyboard,HID driver: hid-generic,usbhid interfaces: 2 rev: 2.0
speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 power: 500mA
chip-ID: 1b1c:1b39 class-ID: 0300 serial: <filter>
Device-2: 3-3.1.3.2.4:36 info: SHARKOON GmbH 2.4GHz Wireless rechargeable
vertical mouse [More&Better] type: mouse driver: hid-generic,usbhid
interfaces: 1 rev: 1.1 speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1
power: 100mA chip-ID: 1ea7:0064 class-ID: 0301
Device-3: 3-3.2:6 info: Lenovo USB-C Dock USB Audio type: audio,HID
driver: hid-generic,snd-usb-audio,usbhid interfaces: 4 rev: 2.0
speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 power: 30mA
chip-ID: 17ef:3103 class-ID: 0300 serial: <filter>
Device-4: 3-3.3:8 info: Lenovo 40B5 type: billboard driver: N/A
interfaces: 2 rev: 2.0 speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1
chip-ID: 17ef:30fc class-ID: 1100 serial: <filter>
Device-5: 3-6:3 info: Synaptics Prometheus Fingerprint Reader
type: <vendor specific> driver: N/A interfaces: 1 rev: 2.0
speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 power: 100mA
chip-ID: 06cb:00fc class-ID: ff00 serial: <filter>
Device-6: 3-8:5 info: Luxvisions Innotech Integrated RGB Camera
type: video driver: uvcvideo interfaces: 5 rev: 2.0
speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 power: 500mA
chip-ID: 30c9:0052 class-ID: fe01 serial: <filter>
Device-7: 3-10:7 info: Intel AX211 Bluetooth type: bluetooth driver: btusb
interfaces: 2 rev: 2.0 speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1
power: 100mA chip-ID: 8087:0033 class-ID: e001
Hub-10: 4-0:1 info: super-speed hub ports: 4 rev: 3.1
speed: 10 Gb/s (1.16 GiB/s) lanes: 1 mode: 3.2 gen-2x1 chip-ID: 1d6b:0003
class-ID: 0900
Sensors:
System Temperatures: cpu: 50.0 C mobo: N/A
Fan Speeds (rpm): fan-1: 0 fan-2: 0
Repos:
Packages: pm: pacman pkgs: 1609 libs: 414 tools: pamac,yay pm: flatpak
pkgs: 0
Active pacman repo servers in: /etc/pacman.d/mirrorlist
1: https://manjaro.mirror.wearetriple.com/stable/$repo/$arch
2: https://ftp.snt.utwente.nl/pub/linux/manjaro/stable/$repo/$arch
3: https://ftp.gwdg.de/pub/linux/manjaro/stable/$repo/$arch
4: https://mirrors.eric.ovh/manjaro/stable/$repo/$arch
5: https://ftpmirror1.infania.net/mirror/manjaro/stable/$repo/$arch
6: https://ftp.cc.uoc.gr/mirrors/linux/manjaro/stable/$repo/$arch
7: https://irltoolkit.mm.fcix.net/manjaro/stable/$repo/$arch
8: https://mirror.freedif.org/Manjaro/stable/$repo/$arch
Processes:
CPU top: 5 of 253
1: cpu: 1.6% command: Xorg pid: 979 mem: 84.0 MiB (0.5%)
2: cpu: 0.7% command: i3bar pid: 1389 mem: 21.0 MiB (0.1%)
3: cpu: 0.5% command: py3status pid: 1396 mem: 43.8 MiB (0.2%)
4: cpu: 0.5% command: terminator started-by: python pid: 1533
mem: 95.4 MiB (0.6%)
5: cpu: 0.2% command: i3status pid: 1425 mem: 9.80 MiB (0.0%)
Memory top: 5 of 253
1: mem: 95.4 MiB (0.6%) command: terminator started-by: python pid: 1533
cpu: 0.5%
2: mem: 84.0 MiB (0.5%) command: Xorg pid: 979 cpu: 1.6%
3: mem: 46.6 MiB (0.2%) command: i3 pid: 1364 cpu: 0.0%
4: mem: 43.8 MiB (0.2%) command: py3status pid: 1396 cpu: 0.5%
5: mem: 34.0 MiB (0.2%) command: xfce4-notifyd pid: 3133 cpu: 0.0%
Info:
Processes: 253 Power: uptime: 1h 12m states: freeze,mem,disk suspend: s2idle
wakeups: 0 hibernate: platform avail: shutdown, reboot, suspend, test_resume
image: 6.04 GiB services: upowerd Init: systemd v: 261 default: graphical
tool: systemctl
Compilers: clang: 22.1.6 gcc: 16.1.1 Shell: Zsh v: 5.9.1
running-in: terminator inxi: 3.3.41
Thanks. I have practically no knowledge of i3 but hopefully someone who does will see this. 
I do note that neither qt5ct or qt6ct are present on my KDE Plasma system; I would also have thought the former would be obsolete by now? (I don’t have keepassxc either).
I also see you have no swap defined; likely not the issue but it’s something you might want to attend to.
It may be a good idea to start these from the Terminal and paste the output messages here. 
That is an easy task: all tested Qt-Programs are quitting with a one-liner “segmentation fault (core dumped)”. No further explanation.
I have no knowledge of i3, i am an xfce user (and my keepassxc, qt5 and qt6 apps are working) but something in the user profile can indeed be the reason. Or some aur package. How is the situation with the theming, maybe you use some qt theme that is old and got removed?
To rule out the first hypothesis create one brand new test user and see if it happens there.
That was spot on. Programs are running under new user, thank You for this! So, some old stuff blocks. Well, I’ll give it a go then.
Close all open programs, clean ~/.cache/* and reboot. Let us know, if that changes anything.
Perfect, removed .cache/*, reboot, everything works fine. Thank You, too! Running with this problem for 2 months, you both solved it in one session. Great help!!!