Mee too! Can't no longer view my photos saved by darktable... 

Gwenview 21.08.2
Kubuntu 21.10
KDE Frameworks Version 5.87.0
Qt 5.15.2
libexiv2-27 0.27.3-3ubuntu4

$ gwenview dsc_0013_jf.jpg
org.kde.kdegraphics.gwenview.lib: Unresolved mime type  "image/x-mng"
org.kde.kdegraphics.gwenview.lib: Unresolved raw mime type  "image/x-nikon-nrw"
org.kde.kdegraphics.gwenview.lib: Unresolved raw mime type  "image/x-samsung-srw"
terminate called after throwing an instance of 'std::out_of_range'
  what():  basic_string::at: __n (which is 19) >= this->size() (which is 19)
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = gwenview path = /usr/bin pid = 235591
KCrash: Arguments: /usr/bin/gwenview dsc_0013_jf.jpg 
KCrash: Attempting to start /usr/lib/x86_64-linux-gnu/libexec/drkonqi

[1]+  Angehalten              gwenview dsc_0013_jf.jpg



Application: Gwenview (gwenview), signal: Aborted

[KCrash Handler]
#4  __pthread_kill_implementation (no_tid=0, signo=6, threadid=140084165356608) at pthread_kill.c:44
#5  __pthread_kill_internal (signo=6, threadid=140084165356608) at pthread_kill.c:80
#6  __GI___pthread_kill (threadid=140084165356608, signo=signo@entry=6) at pthread_kill.c:91
#7  0x00007f67e85db476 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#8  0x00007f67e85c17b7 in __GI_abort () at abort.c:79
#9  0x00007f67e885ea31 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6
#10 0x00007f67e886a4ec in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6
#11 0x00007f67e886a557 in std::terminate() () from /lib/x86_64-linux-gnu/libstdc++.so.6
#12 0x00007f67e886a7f9 in __cxa_throw () from /lib/x86_64-linux-gnu/libstdc++.so.6
#13 0x00007f67e8861448 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6
#14 0x00007f67e83967fd in ?? () from /lib/x86_64-linux-gnu/libexiv2.so.27
#15 0x00007f67e833612d in Exiv2::Xmpdatum::write(std::ostream&, Exiv2::ExifData const*) const () from /lib/x86_64-linux-gnu/libexiv2.so.27
#16 0x00007f67ea8fa6d6 in Gwenview::ImageMetaInfoModel::setExiv2Image(Exiv2::Image const*) () from /lib/x86_64-linux-gnu/libgwenviewlib.so.5
#17 0x00007f67ea8bfcd0 in Gwenview::Document::setExiv2Image(std::unique_ptr<Exiv2::Image, std::default_delete<Exiv2::Image> >) () from /lib/x86_64-linux-gnu/libgwenviewlib.so.5
#18 0x00007f67ea8cacab in ?? () from /lib/x86_64-linux-gnu/libgwenviewlib.so.5
#19 0x00007f67e8cc6a53 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f67e8aacec5 in QFutureWatcherBase::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f67e99f66b3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f67e8c8f16a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f67e8c92257 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f67e8ce8ef7 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f67e63708bb in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f67e63c3f08 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f67e636e003 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f67e8ce8548 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007f67e8c8da9b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#30 0x00007f67e8c96024 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00005646e78c5553 in ?? ()
#32 0x00007f67e85c2fd0 in __libc_start_call_main (main=main@entry=0x5646e78c4fe0, argc=argc@entry=2, argv=argv@entry=0x7ffcec921388) at ../sysdeps/nptl/libc_start_call_main.h:58
#33 0x00007f67e85c307d in __libc_start_main_impl (main=0x5646e78c4fe0, argc=2, argv=0x7ffcec921388, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffcec921378) at ../csu/libc-start.c:409
#34 0x00005646e78c5b75 in ?? ()
[Inferior 1 (process 235591) detached]