SUMMARY
Application: kioslave5 (kioslave5), signal: Aborted
Content of s_kcrashErrorMessage: std::unique_ptr<char []> = {get() = <optimized out>}
[KCrash Handler]
#6  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44
#7  0x00007f4ee65152d3 in __pthread_kill_internal (signo=6, threadid=<optimized out>) at pthread_kill.c:78
#8  0x00007f4ee64c5356 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#9  0x00007f4ee64ae7d3 in __GI_abort () at abort.c:79
#10 0x00007f4ee6758fe7 in qt_message_fatal (message=<synthetic pointer>..., context=...) at global/qlogging.cpp:1914
#11 QMessageLogger::fatal (this=this@entry=0x7ffce01bf2e0, msg=msg@entry=0x7f4ee6d723f0 "Fatal Error: Got cmd %d, while waiting for an answer!") at global/qlogging.cpp:893
#12 0x00007f4ee6ca7ef8 in KIO::SlaveBase::waitForAnswer (this=<optimized out>, expected1=<optimized out>, expected2=<optimized out>, data=..., pCmd=<optimized out>) at /usr/src/debug/kio-5.90.0-2.1.x86_64/src/core/slavebase.cpp:1112
#13 0x00007f4ee6cd8b45 in KIO::SlaveBase::canResume (this=this@entry=0x7ffce01bf7d0, offset=546619392) at /usr/src/debug/kio-5.90.0-2.1.x86_64/src/core/slavebase.cpp:1079
#14 0x00007f4ee6dd5c5f in FileProtocol::put (this=0x7ffce01bf7c0, url=..., _mode=-1, _flags=...) at /usr/src/debug/kio-5.90.0-2.1.x86_64/src/ioslaves/file/file.cpp:535
#15 0x00007f4ee6cde502 in KIO::SlaveBase::dispatch (this=0x7ffce01bf7d0, command=68, data=...) at /usr/src/debug/kio-5.90.0-2.1.x86_64/src/core/slavebase.cpp:1252
#16 0x00007f4ee6cd9d16 in KIO::SlaveBase::dispatchLoop (this=0x7ffce01bf7d0) at /usr/src/debug/kio-5.90.0-2.1.x86_64/src/core/slavebase.cpp:334
#17 0x00007f4ee6dd4559 in kdemain (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kio-5.90.0-2.1.x86_64/src/ioslaves/file/file.cpp:91
#18 0x00007f4ee6e2e362 in main (argc=5, argv=0x7ffce01bfa68) at /usr/src/debug/kio-5.90.0-2.1.x86_64/src/kioslave/kioslave.cpp:141
[Inferior 1 (process 7450) detached]

I haven't tried to reproduce it, but what I did was:
1.  Send a video file from android to linux over wifi
2.  Loss wifi signal, the file was not send right (it did notify in android, but kept waiting in linux)
3.  Try to send the same file again.

SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20220210
KDE Plasma Version: 5.24.0
KDE Frameworks Version: 5.90.0
Qt Version: 5.15.2
Kernel Version: 5.17.0-rc3-1.g335402f-default (64-bit)
Graphics Platform: X11
Processors: 6 × AMD Phenom(tm) II X6 1100T Processor
Memory: 15.6 GiB of RAM
Graphics Processor: AMD JUNIPER