STEPS TO REPRODUCE
1. download BiglyBT installer
https://www.biglybt.com/download/
2. make it executable
3. double click on the installer

OBSERVED RESULT
plasma shows a notification about kdeinit5 crash

EXPECTED RESULT
no crash

SOFTWARE/OS VERSIONS
Operating System: KDE neon Unstable Edition
KDE Plasma Version: 5.16.80
KDE Frameworks Version: 5.60.0
Qt Version: 5.12.3


ADDITIONAL INFORMATION
Application: kdeinit5 (kdeinit5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd3357fc780 (LWP 10301))]

Thread 3 (Thread 0x7fd317b67700 (LWP 10303)):
#0  0x00007fd32fda7664 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fd32fd60fd9 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd32fd61570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd32fd616dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd333dc4dcb in QEventDispatcherGlib::processEvents (this=0x7fd310000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fd333d6603a in QEventLoop::exec (this=this@entry=0x7fd317b66df0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007fd333b8d4ca in QThread::exec (this=this@entry=0x7fd32b78cd80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:531
#7  0x00007fd32b515015 in QDBusConnectionManager::run (this=0x7fd32b78cd80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#8  0x00007fd333b8ec72 in QThreadPrivate::start (arg=0x7fd32b78cd80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:361
#9  0x00007fd331c426db in start_thread (arg=0x7fd317b67700) at pthread_create.c:463
#10 0x00007fd33381788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fd31dde1700 (LWP 10302)):
#0  0x00007fd331c489f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x557f8e211828) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x557f8e2117d8, cond=0x557f8e211800) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x557f8e211800, mutex=0x557f8e2117d8) at pthread_cond_wait.c:655
#3  0x00007fd31f2063da in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007fd31f206107 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007fd331c426db in start_thread (arg=0x7fd31dde1700) at pthread_create.c:463
#6  0x00007fd33381788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fd3357fc780 (LWP 10301)):
[KCrash Handler]
#6  0x00007fd334ea3003 in XAddExtension () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#7  0x00007fd30c2742e5 in _XftDisplayInfoGet (dpy=dpy@entry=0x557f8e070ae0, createIfNecessary=createIfNecessary@entry=1) at ../../src/xftdpy.c:91
#8  0x00007fd30c2788de in XftFontInfoFill (dpy=dpy@entry=0x557f8e070ae0, pattern=pattern@entry=0x557f8e663330, fi=fi@entry=0x7fff98438c80) at ../../src/xftfreetype.c:367
#9  0x00007fd30c279256 in XftFontOpenPattern (dpy=0x557f8e070ae0, pattern=pattern@entry=0x557f8e663330) at ../../src/xftfreetype.c:1015
#10 0x00007fd30c487b9f in KFI::CFcEngine::getFont (this=this@entry=0x557f8e5d52d8, size=size@entry=8) at ./kcms/kfontinst/lib/FcEngine.cpp:1299
#11 0x00007fd30c488172 in KFI::CFcEngine::queryFont (this=this@entry=0x557f8e5d52d8) at ./kcms/kfontinst/lib/FcEngine.cpp:1233
#12 0x00007fd30c488908 in KFI::CFcEngine::getSizes (this=0x557f8e5d52d8) at ./kcms/kfontinst/lib/FcEngine.cpp:1391
#13 0x00007fd30c48a328 in KFI::CFcEngine::draw (this=this@entry=0x557f8e5d52d8, name=..., style=style@entry=4294967295, faceNo=faceNo@entry=0, txt=..., bgnd=..., w=128, h=128, thumb=true, range=..., chars=0x0) at ./kcms/kfontinst/lib/FcEngine.cpp:876
#14 0x00007fd30c6b1265 in KFI::CFontThumbnail::create (this=0x557f8e5d52d0, path=..., width=128, height=128, img=...) at ./kcms/kfontinst/thumbnail/FontThumbnail.cpp:114
#15 0x00007fd32564ffc4 in ThumbnailProtocol::createSubThumbnail (this=this@entry=0x7fff98439650, thumbnail=..., filePath=..., segmentWidth=segmentWidth@entry=54, segmentHeight=segmentHeight@entry=34) at ./thumbnail/thumbnail.cpp:727
#16 0x00007fd3256505d8 in ThumbnailProtocol::drawSubThumbnail (this=this@entry=0x7fff98439650, p=..., filePath=..., width=width@entry=54, height=height@entry=34, xPos=xPos@entry=64, yPos=38, frameWidth=2) at ./thumbnail/thumbnail.cpp:759
#17 0x00007fd325650c22 in ThumbnailProtocol::thumbForDirectory (this=this@entry=0x7fff98439650, directory=...) at ./thumbnail/thumbnail.cpp:562
#18 0x00007fd325652064 in ThumbnailProtocol::get (this=0x7fff98439650, url=...) at ./thumbnail/thumbnail.cpp:238
#19 0x00007fd32c932cd6 in KIO::SlaveBase::dispatch (this=0x7fff98439650, command=67, data=...) at ./src/core/slavebase.cpp:1126
#20 0x00007fd32c9334d6 in KIO::SlaveBase::dispatchLoop (this=this@entry=0x7fff98439650) at ./src/core/slavebase.cpp:325
#21 0x00007fd32564f2d0 in kdemain (argc=<optimized out>, argv=<optimized out>) at ./thumbnail/thumbnail.cpp:138
#22 0x0000557f8cb2664d in launch (argc=4, _name=0x557f8e049eb8 "/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/thumbnail.so", args=<optimized out>, cwd=<optimized out>, envc=<optimized out>, envs=<optimized out>, reset_env=false, tty=0x0, avoid_loops=false, startup_id_str=0x557f8cb29307 "0") at ./src/kdeinit/kinit.cpp:706
#23 0x0000557f8cb27b5b in handle_launcher_request (sock=8, who=<optimized out>) at ./src/kdeinit/kinit.cpp:1146
#24 0x0000557f8cb283eb in handle_requests (waitForPid=0) at ./src/kdeinit/kinit.cpp:1339
#25 0x0000557f8cb22ff4 in main (argc=5, argv=<optimized out>) at ./src/kdeinit/kinit.cpp:1785