Hi altogether,
I wonder if you could help me understand what happened.
I just updated Lubuntu 20.04.2 and initiated a reboot. Shortly after logging into my system again xpad (“sticky note application for X”) shut down after it had been started.
This occurred at such a fast pace that I´m not sure whether lxqt-panel also was shut down but immediately restarted by itself.
Anyhow I looked up what lnav had to say and I found this (both lxqt-panel and xpad are mentioned here):
│Feb 10 17:59:12 rosika-10159 kernel: [ 217.370577] lxqt-panel[1293]: segfault at 8 ip 00007f4dce24dedc sp 00007ffe9049a730 error 4 in libQt5Widgets.so.5.12.8[7f4dce0af000+3c4000] │
│Feb 10 17:59:12 rosika-10159 kernel: [ 217.370591] Code: c0 4d 85 ed 74 08 4c 89 ef e8 60 d0 e6 ff 48 8b 7b 48 4c 89 6b 50 48 89 43 48 48 85 ff 74 0b f0 83 2f 01 75 05 e8 e4 d0 e6 ff <49> 8b 45 08 48 89 98 c8 02 00 00 48 89 6b 08 48│
│Feb 10 17:59:12 rosika-10159 kernel: [ 217.948033] traps: xpad[1538] trap int3 ip:7f7ed35d90b5 sp:7ffc45f50e80 error:0 in libglib-2.0.so.0.6400.6[7f7ed359d000+84000] │
This had never happened before and I´m not quite sure what to make of it. 
Can anybody possibly shed some light on the matter?
Thanks a lot in advance.
Many greetings.
Rosika 