gdb bt says:

Thread 1 "krita" received signal SIGSEGV, Segmentation fault.
_Py_Dealloc (op=0x7fff6c2105ff) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Objects/object.c:3046
3046        unsigned long gc_flag = type->tp_flags & Py_TPFLAGS_HAVE_GC;
(gdb) bt
#0  _Py_Dealloc (op=0x7fff6c2105ff) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Objects/object.c:3046
#1  Py_DECREF (op=0x7fff6c2105ff) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Include/refcount.h:419
#2  BaseException_clear (op=0x7fff6c229fc0) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Objects/exceptions.c:137
#3  0x00007fff4d9763e2 in BaseException_dealloc (op=<optimized out>) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Objects/exceptions.c:153
#4  _PyEval_EvalFrameDefault (tstate=0x7fff4ddc64e8 <_PyRuntime+315624>, frame=0x7fffc853e260, throwflag=1814252179) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Python/generated_cases.c.h:10160
#5  0x00007fff4d9a3bc5 in _PyEval_EvalFrame (tstate=0x7fff4ddc64e8 <_PyRuntime+315624>, frame=0x7fffc853e020, throwflag=0) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Include/internal/pycore_ceval.h:119
#6  _PyEval_Vector (tstate=0x7fff4ddc64e8 <_PyRuntime+315624>, func=<optimized out>, locals=0x0, args=<optimized out>, argcount=<optimized out>, kwnames=<optimized out>) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Python/ceval.c:1965
#7  _PyFunction_Vectorcall (func=<optimized out>, stack=<optimized out>, nargsf=<optimized out>, kwnames=<optimized out>) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Objects/call.c:413
#8  0x00007fff4d9960b1 in _PyObject_VectorcallTstate (tstate=0x7fff4ddc64e8 <_PyRuntime+315624>, callable=0x7fff8c787d70, args=0x7fffffffae30, nargsf=<optimized out>, kwnames=0x0) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Include/internal/pycore_call.h:169
#9  object_vacall (tstate=0x7fff4ddc64e8 <_PyRuntime+315624>, base=<optimized out>, callable=0x7fff8c787d70, vargs=<optimized out>) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Objects/call.c:819
#10 0x00007fff4d9d89c5 in PyObject_CallMethodObjArgs (obj=<optimized out>, name=<optimized out>) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Objects/call.c:880
#11 0x00007fff4d9d874a in import_find_and_load (tstate=0x7fff4ddc64e8 <_PyRuntime+315624>, abs_name=0x7fff8c3f0570) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Python/import.c:3726
#12 PyImport_ImportModuleLevelObject (name=0x7fff8c3f0570, globals=<optimized out>, locals=<optimized out>, fromlist=0x7fff8c30b1c0, level=0) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Python/import.c:3808
#13 0x00007fff4d9eb01d in builtin___import___impl (module=<optimized out>, name=<optimized out>, globals=<optimized out>, locals=<optimized out>, fromlist=<optimized out>, level=<optimized out>) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Python/bltinmodule.c:285
#14 builtin___import__ (module=<optimized out>, args=<optimized out>, nargs=<optimized out>, kwnames=<optimized out>) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Python/clinic/bltinmodule.c.h:110
#15 0x00007fff4d953994 in _PyObject_VectorcallTstate (tstate=0x7fff4ddc64e8 <_PyRuntime+315624>, callable=0x7fff8c79fab0, args=0x7fffffffb150, nargsf=1, kwnames=0x0) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Include/internal/pycore_call.h:169
#16 _PyObject_CallFunctionVa (tstate=0x7fff4ddc64e8 <_PyRuntime+315624>, callable=0x7fff8c79fab0, format=<optimized out>, va=0x7fffffffb130) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Objects/call.c:552
#17 PyObject_CallFunction (callable=0x7fff8c79fab0, format=<optimized out>) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Objects/call.c:574
#18 0x00007fff4d9ea82f in PyImport_Import (module_name=0x7fff8c3f0570) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Python/import.c:4000
#19 0x00007fff4da82b40 in PyImport_ImportModule (name=<optimized out>) at /usr/src/debug/python3.14-3.14.0-1.fc43.x86_64/Python/import.c:3423
#20 0x00007fffac1c0130 in PyKrita::Python::moduleImport (this=0x7fffffffb3b0, moduleName=0x5555593742a8 "documenttools") at /usr/src/debug/krita-5.2.13-1.fc43.x86_64/plugins/extensions/pykrita/plugin/utilities.cpp:499
#21 0x00007fffac1c8870 in PythonPluginManager::loadModule(PythonPlugin&) [clone .isra.0] (plugin=..., this=<optimized out>) at /usr/src/debug/krita-5.2.13-1.fc43.x86_64/plugins/extensions/pykrita/plugin/PythonPluginManager.cpp:347
#22 0x00007fffac1c6a00 in PythonPluginManager::tryLoadEnabledPlugins (this=<optimized out>) at /usr/src/debug/krita-5.2.13-1.fc43.x86_64/plugins/extensions/pykrita/plugin/PythonPluginManager.cpp:326
#23 KritaPyQtPlugin::KritaPyQtPlugin (this=this@entry=0x555558e00db0, parent=parent@entry=0x7fffffffc030) at /usr/src/debug/krita-5.2.13-1.fc43.x86_64/plugins/extensions/pykrita/plugin/plugin.cpp:70
#24 0x00007fffac1c7a30 in KPluginFactory::createInstance<KritaPyQtPlugin, QObject> (parentWidget=<optimized out>, parent=<optimized out>, args=<optimized out>) at /usr/include/KF5/KCoreAddons/kpluginfactory.h:891
#25 0x00007ffff44bae5a in KPluginFactory::create (this=this@entry=0x555557ef44d0, iface=0x7ffff5c7ff20 <qt_meta_stringdata_QObject+192> "QObject", parentWidget=parentWidget@entry=0x0, parent=parent@entry=0x7fffffffc030, args=..., keyword=...)
    at /usr/src/debug/kf5-kcoreaddons-5.116.0-4.fc43.x86_64/src/lib/plugin/kpluginfactory.cpp:236
#26 0x00007ffff4bf337e in KPluginFactory::create<QObject> (this=<optimized out>, parent=<optimized out>, args=<optimized out>) at /usr/include/KF5/KCoreAddons/kpluginfactory.h:939
#27 KoPluginLoader::load (this=this@entry=0x7ffff4bff060 <(anonymous namespace)::Q_QGS_pluginLoaderInstance::innerFunction()::holder>, serviceType=..., versionString=..., config=..., owner=<optimized out>, cache=cache@entry=true)
    at /usr/src/debug/krita-5.2.13-1.fc43.x86_64/libs/koplugin/KoPluginLoader.cpp:128
#28 0x00007ffff79ac4d5 in KisMainWindow::KisMainWindow (this=0x555557b57770, uuid=..., this=<optimized out>, uuid=...) at /usr/src/debug/krita-5.2.13-1.fc43.x86_64/libs/ui/KisMainWindow.cpp:381
#29 0x00007ffff79d390d in KisPart::createMainWindow (this=0x7ffff7e13570 <(anonymous namespace)::Q_QGS_s_instance::innerFunction()::holder>, id=...) at /usr/src/debug/krita-5.2.13-1.fc43.x86_64/libs/ui/KisPart.cpp:261
#30 0x00007ffff79d4006 in KisPart::startBlankSession (this=<optimized out>) at /usr/src/debug/krita-5.2.13-1.fc43.x86_64/libs/ui/KisPart.cpp:661
#31 0x00007ffff797bf17 in KisApplication::start (this=this@entry=0x7fffffffc030, args=...) at /usr/src/debug/krita-5.2.13-1.fc43.x86_64/libs/ui/KisApplication.cpp:502
#32 0x00005555555588a7 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/krita-5.2.13-1.fc43.x86_64/krita/main.cc:789

But then again, 5.2.11-2.fc43 also won't open.

Works great. Thank you for the update.

Thank you for the update!

Works for me. Thank you.

Works for me. Thank you for the update.

Thank you very much! Works for me now. :)

Thanks for the update!

Thanks for the update!

Works great. Thank you.

Update works for me.

Works great! Thanks.

Thank you!

It works! Thank you!

The updated still does not fix the issue:

gchem3d: error while loading shared libraries: libgcugtk-0.14.so.0: cannot open shared object file: No such file or directory

Thanks for the update! :)

Works great! Thank you!

Works for me. Thank you very much!