I have the same issue. Here is everything from "run -v" and my backtrace which differs quite a bit from the one from cges30901.
Starting program: /usr/bin/geany -v [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". [New Thread 0x7fffe8488640 (LWP 428456)] Geany-INFO: 03:24:11.603: Geany 1.37.1, en_US.UTF-8 Geany-INFO: 03:24:11.603: GTK 3.24.29, GLib 2.68.2 Geany-INFO: 03:24:11.603: OS: Fedora 34 (Thirty Four) () Geany-INFO: 03:24:11.603: System data dir: /usr/share/geany Geany-INFO: 03:24:11.603: User config dir: /home/xxxxxxxxxx/.config/geany [New Thread 0x7fffe7c0e640 (LWP 428457)] (geany:428452): GLib-GIO-DEBUG: 03:24:11.616: _g_io_module_get_default: Found default implementation gvfs (GDaemonVfs) for ‘gio-vfs’ [New Thread 0x7fffe72f0640 (LWP 428458)] [Thread 0x7fffe72f0640 (LWP 428458) exited] [New Thread 0x7fffe72f0640 (LWP 428459)] [New Thread 0x7fffe6608640 (LWP 428460)] [Thread 0x7fffe72f0640 (LWP 428459) exited] [New Thread 0x7fffe72f0640 (LWP 428461)] [New Thread 0x7fffe5d3f640 (LWP 428462)] [Thread 0x7fffe72f0640 (LWP 428461) exited] [Thread 0x7fffe6608640 (LWP 428460) exited] [Thread 0x7fffe5d3f640 (LWP 428462) exited] [New Thread 0x7fffe5d3f640 (LWP 428463)] [New Thread 0x7fffe6608640 (LWP 428464)] [New Thread 0x7fffe72f0640 (LWP 428465)] [New Thread 0x7fffe5444640 (LWP 428466)] [Thread 0x7fffe72f0640 (LWP 428465) exited] [Thread 0x7fffe5444640 (LWP 428466) exited] Geany-INFO: 03:24:11.753: Loaded GTK+ CSS theme '/usr/share/geany/geany.css' Geany-INFO: 03:24:11.754: Loaded GTK+ CSS theme '/usr/share/geany/geany-3.20.css' Geany-INFO: 03:24:11.757: System plugin path: /usr/lib64/geany Geany-INFO: 03:24:11.765: Added filetype CUDA (63). Geany-INFO: 03:24:11.765: Added filetype Clojure (64). Geany-INFO: 03:24:11.765: Added filetype Nim (65). Geany-INFO: 03:24:11.765: Added filetype Swift (66). Geany-INFO: 03:24:11.765: Added filetype Cython (67). Geany-INFO: 03:24:11.765: Added filetype TypeScript (68). Geany-INFO: 03:24:11.765: Added filetype Kotlin (69). Geany-INFO: 03:24:11.765: Added filetype Genie (70). Geany-INFO: 03:24:11.765: Added filetype Scala (71). Geany-INFO: 03:24:11.765: Added filetype Graphviz (72). Geany-INFO: 03:24:11.765: Added filetype Groovy (73). Geany-INFO: 03:24:11.765: Added filetype Arduino (74). Geany-INFO: 03:24:11.765: Added filetype JSON (75). Geany-INFO: 03:24:11.847: Loaded libvte from libvte-2.91.so.0 Geany-INFO: 03:24:11.850: Loaded: /usr/lib64/geany/classbuilder.so (Class Builder) Geany-INFO: 03:24:11.852: Loaded: /usr/lib64/geany/export.so (Export) Geany-INFO: 03:24:11.857: Loaded: /usr/lib64/geany/filebrowser.so (File Browser) Geany-INFO: 03:24:11.859: Loaded: /usr/lib64/geany/saveactions.so (Save Actions) [New Thread 0x7fffe5444640 (LWP 428467)] [New Thread 0x7fffe72f0640 (LWP 428468)] [Thread 0x7fffe5444640 (LWP 428467) exited] [New Thread 0x7fffe5444640 (LWP 428469)] [New Thread 0x7fffce4e6640 (LWP 428470)] [Thread 0x7fffe72f0640 (LWP 428468) exited] [Thread 0x7fffe5444640 (LWP 428469) exited] [New Thread 0x7fffe5444640 (LWP 428471)] [New Thread 0x7fffe72f0640 (LWP 428472)] [Thread 0x7fffe5444640 (LWP 428471) exited] [Thread 0x7fffce4e6640 (LWP 428470) exited] [New Thread 0x7fffce4e6640 (LWP 428473)] [New Thread 0x7fffe5444640 (LWP 428474)] [Thread 0x7fffce4e6640 (LWP 428473) exited] [Thread 0x7fffe72f0640 (LWP 428472) exited] [Thread 0x7fffe5444640 (LWP 428474) exited] Geany-INFO: 03:24:11.922: unknown : None (UTF-8) [New Thread 0x7fffe5444640 (LWP 428475)] [New Thread 0x7fffe72f0640 (LWP 428476)] [Thread 0x7fffe5444640 (LWP 428475) exited] [New Thread 0x7fffe5444640 (LWP 428477)] [New Thread 0x7fffce4e6640 (LWP 428478)] [Thread 0x7fffe72f0640 (LWP 428476) exited] [Thread 0x7fffe5444640 (LWP 428477) exited] [Thread 0x7fffce4e6640 (LWP 428478) exited] [New Thread 0x7fffce4e6640 (LWP 428479)] [New Thread 0x7fffe5444640 (LWP 428480)] [Thread 0x7fffce4e6640 (LWP 428479) exited] [New Thread 0x7fffce4e6640 (LWP 428481)] [New Thread 0x7fffe72f0640 (LWP 428482)] [Thread 0x7fffce4e6640 (LWP 428481) exited] [Thread 0x7fffe5444640 (LWP 428480) exited] [New Thread 0x7fffe5444640 (LWP 428483)] [New Thread 0x7fffce4e6640 (LWP 428484)] [Thread 0x7fffe72f0640 (LWP 428482) exited] [Thread 0x7fffe5444640 (LWP 428483) exited] [New Thread 0x7fffe5444640 (LWP 428485)] [New Thread 0x7fffe72f0640 (LWP 428486)] [Thread 0x7fffe5444640 (LWP 428485) exited] [New Thread 0x7fffe5444640 (LWP 428487)] [Thread 0x7fffce4e6640 (LWP 428484) exited] [New Thread 0x7fffce4e6640 (LWP 428488)] [Thread 0x7fffe5444640 (LWP 428487) exited] [Thread 0x7fffe72f0640 (LWP 428486) exited] [New Thread 0x7fffe72f0640 (LWP 428489)] [New Thread 0x7fffe5444640 (LWP 428490)] [Thread 0x7fffe72f0640 (LWP 428489) exited] [Thread 0x7fffce4e6640 (LWP 428488) exited] [New Thread 0x7fffce4e6640 (LWP 428491)] [New Thread 0x7fffe72f0640 (LWP 428492)] [Thread 0x7fffe5444640 (LWP 428490) exited] [Thread 0x7fffce4e6640 (LWP 428491) exited] [New Thread 0x7fffce4e6640 (LWP 428493)] [New Thread 0x7fffe5444640 (LWP 428494)] [Thread 0x7fffce4e6640 (LWP 428493) exited] [Thread 0x7fffe72f0640 (LWP 428492) exited] [New Thread 0x7fffe72f0640 (LWP 428495)] [New Thread 0x7fffce4e6640 (LWP 428496)] [Thread 0x7fffe72f0640 (LWP 428495) exited] [Thread 0x7fffe5444640 (LWP 428494) exited] [New Thread 0x7fffe5444640 (LWP 428497)] [New Thread 0x7fffe72f0640 (LWP 428498)] [Thread 0x7fffe5444640 (LWP 428497) exited] [Thread 0x7fffce4e6640 (LWP 428496) exited] [New Thread 0x7fffce4e6640 (LWP 428499)] [New Thread 0x7fffe5444640 (LWP 428500)] [Thread 0x7fffe72f0640 (LWP 428498) exited] [Thread 0x7fffce4e6640 (LWP 428499) exited] [New Thread 0x7fffce4e6640 (LWP 428501)] [New Thread 0x7fffe72f0640 (LWP 428502)] [Thread 0x7fffce4e6640 (LWP 428501) exited] [Thread 0x7fffe5444640 (LWP 428500) exited] [New Thread 0x7fffe5444640 (LWP 428503)] [New Thread 0x7fffce4e6640 (LWP 428504)] [Thread 0x7fffe72f0640 (LWP 428502) exited] [Thread 0x7fffe5444640 (LWP 428503) exited] [New Thread 0x7fffe5444640 (LWP 428505)] [New Thread 0x7fffe72f0640 (LWP 428506)] [Thread 0x7fffe5444640 (LWP 428505) exited] [Thread 0x7fffce4e6640 (LWP 428504) exited] [New Thread 0x7fffce4e6640 (LWP 428507)] [New Thread 0x7fffe5444640 (LWP 428508)] [Thread 0x7fffce4e6640 (LWP 428507) exited] [Thread 0x7fffe72f0640 (LWP 428506) exited] [New Thread 0x7fffe72f0640 (LWP 428509)] [New Thread 0x7fffce4e6640 (LWP 428510)] [Thread 0x7fffe72f0640 (LWP 428509) exited] [Thread 0x7fffe5444640 (LWP 428508) exited] [Thread 0x7fffce4e6640 (LWP 428510) exited] [Detaching after fork from child process 428511] [Thread 0x7fffe6608640 (LWP 428464) exited] [Thread 0x7fffe5d3f640 (LWP 428463) exited] **/usr/include/c++/11/bits/shared_ptr_base.h:976: std::__shared_ptr_access<_Tp, _Lp, <anonymous>, <anonymous> >::element_type& std::__shared_ptr_access<_Tp, _Lp, <anonymous>, <anonymous> >::operator*() const [with _Tp = vte::platform::Clipboard; __gnu_cxx::_Lock_policy _Lp = __gnu_cxx::_S_atomic; bool <anonymous> = false; bool <anonymous> = false; std::__shared_ptr_access<_Tp, _Lp, <anonymous>, <anonymous> >::element_type = vte::platform::Clipboard]: Assertion '_M_get() != nullptr' failed.** --Type <RET> for more, q to quit, c to continue without paging--
**Thread 1 "geany" received signal SIGABRT, Aborted. __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:49 49 return ret;**
Backtrace: #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:49 #1 0x00007ffff7b158a4 in __GI_abort () at abort.c:79 #2 0x00007fffe4bda9d8 in std::__replacement_assert(char const*, int, char const*, char const*) (__file=<optimized out>, __line=<optimized out>, __function=<optimized out>, __condition=<optimized out>) at /usr/include/c++/11/x86_64-redhat-linux/bits/c++config.h:2654 #3 0x00007fffe4c10bd8 in std::__shared_ptr_access<vte::platform::Clipboard, (__gnu_cxx::_Lock_policy)2, false, false>::operator*() const (this=<optimized out>) at /usr/include/c++/11/bits/shared_ptr_base.h:976 #4 std::__shared_ptr_access<vte::platform::Clipboard, (__gnu_cxx::_Lock_policy)2, false, false>::operator*() const (this=0x55555561dc18, this=<optimized out>) at /usr/include/c++/11/bits/shared_ptr_base.h:974 #5 vte::platform::Widget::clipboard_get(vte::platform::ClipboardType) const (this=this@entry=0x55555561dbc0, type=type@entry=vte::platform::ClipboardType::CLIPBOARD) at ../src/widget.cc:228 #6 0x00007fffe4c10c49 in vte::platform::Widget::clipboard_request_text(vte::platform::ClipboardType) (this=0x55555561dbc0, type=vte::platform::ClipboardType::CLIPBOARD) at ../src/widget.cc:278 #7 0x00007ffff6d8383a in _g_closure_invoke_va (param_types=0x0, n_params=<optimized out>, args=0x7fffffffc9f0, instance=0x555555c74aa0, return_value=0x0, closure=0x55555622d620) at ../gobject/gclosure.c:873 #8 g_signal_emit_valist (instance=0x555555c74aa0, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffffffc9f0) at ../gobject/gsignal.c:3406 #9 0x00007ffff6d83983 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at ../gobject/gsignal.c:3553 #10 0x00007fffe4bfc75a in vte::terminal::Terminal::emit_paste_clipboard() (this=<optimized out>, this=<optimized out>) at ../src/vte.cc:1077 #11 vte_terminal_paste_clipboard(VteTerminal*) (terminal=0x555555c74aa0) at ../src/vtegtk.cc:2548 #15 0x00007ffff6d83983 in <emit signal ??? on instance ???> (instance=<optimized out>, signal_id=<optimized out>, detail=detail@entry=0) at ../gobject/gsignal.c:3553 #12 0x00007ffff6d65c2f in g_closure_invoke (closure=0x55555629a100, return_value=0x0, n_param_values=1, param_values=0x7fffffffcc80, invocation_hint=0x7fffffffcc00) at ../gobject/gclosure.c:810 #13 0x00007ffff6d81ea6 in signal_emit_unlocked_R (node=node@entry=0x55555560a8b0, detail=detail@entry=0, instance=instance@entry=0x555556202620, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fffffffcc80) at ../gobject/gsignal.c:3741 #14 0x00007ffff6d8376a in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fffffffce30) at ../gobject/gsignal.c:3497 #16 0x00007ffff76d99e0 in closure_accel_activate (closure=closure@entry=0x555556298e40, return_value=return_value@entry=0x7fffffffd060, n_param_values=n_param_values@entry=4, param_values=param_values@entry=0x7fffffffd0c0, invocation_hint=invocation_hint@entry=0x7fffffffd040, marshal_data=marshal_data@entry=0x0) at /usr/src/debug/gtk3-3.24.29-1.fc34.x86_64/gtk/gtkwidget.c:6616 #20 0x00007ffff6d83983 in <emit signal ??? on instance ???> (instance=instance@entry=0x555556296320, signal_id=<optimized out>, detail=detail@entry=3007) at ../gobject/gsignal.c:3553 #17 0x00007ffff6d65c2f in g_closure_invoke (closure=0x555556298e40, return_value=0x7fffffffd060, n_param_values=4, param_values=0x7fffffffd0c0, invocation_hint=0x7fffffffd040) at ../gobject/gclosure.c:810 #18 0x00007ffff6d81ea6 in signal_emit_unlocked_R (node=<optimized out>, detail=detail@entry=3007, instance=instance@entry=0x555556296320, emission_return=emission_return@entry=0x7fffffffd210, instance_and_params=instance_and_params@entry=0x7fffffffd0c0) at ../gobject/gsignal.c:3741 #19 0x00007ffff6d832de in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fffffffd2c0) at ../gobject/gsignal.c:3507 #21 0x00007ffff745091c in gtk_accel_group_activate (accel_group=0x555556296320, accel_quark=accel_quark@entry=3007, acceleratable=acceleratable@entry=0x555555c82500, accel_key=accel_key@entry=118, accel_mods=accel_mods@entry=5) at /usr/src/debug/gtk3-3.24.29-1.fc34.x86_64/gtk/gtkaccelgroup.c:910 #22 0x00007ffff7451d2d in gtk_accel_groups_activate (accel_mods=5, accel_key=118, object=0x555555c82500) at /usr/src/debug/gtk3-3.24.29-1.fc34.x86_64/gtk/gtkaccelgroup.c:948 #23 gtk_accel_groups_activate (object=0x555555c82500, accel_key=118, accel_mods=5) at /usr/src/debug/gtk3-3.24.29-1.fc34.x86_64/gtk/gtkaccelgroup.c:931 #24 0x00007ffff76fdd7d in gtk_window_activate_key (window=window@entry=0x555555c82500, event=event@entry=0x555555e535d0) at /usr/src/debug/gtk3-3.24.29-1.fc34.x86_64/gtk/gtkwindow.c:12057 #25 0x00007ffff76fe366 in gtk_window_key_press_event (widget=0x555555c82500, event=0x555555e535d0) at /usr/src/debug/gtk3-3.24.29-1.fc34.x86_64/gtk/gtkwindow.c:8252 #30 0x00007ffff6d83983 in <emit signal ??? on instance ???> (instance=instance@entry=0x555555c82500, signal_id=<optimized out>, detail=detail@entry=0) at ../gobject/gsignal.c:3553 #26 0x00007ffff7726327 in _gtk_marshal_BOOLEAN__BOXED (closure=0x5555555fd670, return_value=0x7fffffffd660, n_param_values=<optimized out>, param_values=0x7fffffffd6c0, invocation_hint=<optimized out>, marshal_data=<optimized out>) at /usr/src/debug/gtk3-3.24.29-1.fc34.x86_64/gtk/gtkmarshalers.c:83 #27 0x00007ffff6d65c2f in g_closure_invoke (closure=0x5555555fd670, return_value=0x7fffffffd660, n_param_values=2, param_values=0x7fffffffd6c0, invocation_hint=0x7fffffffd640) at ../gobject/gclosure.c:810 #28 0x00007ffff6d81894 in signal_emit_unlocked_R (node=<optimized out>, detail=detail@entry=0, instance=instance@entry=0x555555c82500, emission_return=emission_return@entry=0x7fffffffd7e0, instance_and_params=instance_and_params@entry=0x7fffffffd6c0) at ../gobject/gsignal.c:3780 #29 0x00007ffff6d832de in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fffffffd890) at ../gobject/gsignal.c:3507 #31 0x00007ffff76ecf64 in gtk_widget_event_internal.part.0.lto_priv.0 (widget=0x555555c82500, event=0x555555e535d0) at /usr/src/debug/gtk3-3.24.29-1.fc34.x86_64/gtk/gtkwidget.c:7808 #32 0x00007ffff75903df in propagate_event (widget=widget@entry=0x555555c82500, event=event@entry=0x555555e535d0, captured=captured@entry=0, topmost=topmost@entry=0x0) at /usr/src/debug/gtk3-3.24.29-1.fc34.x86_64/gtk/gtkmain.c:2681 #33 0x00007ffff7590453 in gtk_propagate_event (widget=widget@entry=0x555555c82500, event=event@entry=0x555555e535d0) at /usr/src/debug/gtk3-3.24.29-1.fc34.x86_64/gtk/gtkmain.c:2725 #34 0x00007ffff75911ea in gtk_main_do_event (event=<optimized out>) at /usr/src/debug/gtk3-3.24.29-1.fc34.x86_64/gtk/gtkmain.c:1921 #35 gtk_main_do_event (event=<optimized out>) at /usr/src/debug/gtk3-3.24.29-1.fc34.x86_64/gtk/gtkmain.c:1691 #36 0x00007ffff72737d3 in _gdk_event_emit (event=0x555555e535d0) at /usr/src/debug/gtk3-3.24.29-1.fc34.x86_64/gdk/gdkevents.c:73 #37 _gdk_event_emit (event=0x555555e535d0) at /usr/src/debug/gtk3-3.24.29-1.fc34.x86_64/gdk/gdkevents.c:67 #38 0x00007ffff72aac16 in gdk_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at x11/gdkeventsource.c:367 #39 0x00007ffff6c624cf in g_main_dispatch (context=0x5555555e74a0) at ../glib/gmain.c:3337 #40 g_main_context_dispatch (context=0x5555555e74a0) at ../glib/gmain.c:4055 #41 0x00007ffff6cb64e8 in g_main_context_iterate.constprop.0 (context=0x5555555e74a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4131 #42 0x00007ffff6c61a93 in g_main_loop_run (loop=0x5555563f0b40) at ../glib/gmain.c:4329 #43 0x00007ffff758747d in gtk_main () at /usr/src/debug/gtk3-3.24.29-1.fc34.x86_64/gtk/gtkmain.c:1329 #44 0x00007ffff7d4e42a in main_lib(gint, gchar**) (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/geany-1.37.1-2.fc34.x86_64/src/libmain.c:1302 #45 0x00007ffff7b16b75 in __libc_start_main (main=0x555555555070 <main>, argc=2, argv=0x7fffffffde78, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffde68) at ../csu/libc-start.c:332 #46 0x00005555555550ae in _start ()