Program crashes after preview of reverb sound effect finishes playing

[adct-the-experimenter]

New info:

This tends to happen on the second time that preview button is clicked on to play the sound with reverb effect.

Backtrace

#0 0x00007ffff576e78c in _XEnq () at /usr/lib/libX11.so.6
#1 0x00007ffff576b448 in () at /usr/lib/libX11.so.6
#2 0x00007ffff576bd8a in _XEventsQueued () at /usr/lib/libX11.so.6
#3 0x00007ffff575d782 in XPending () at /usr/lib/libX11.so.6
#4 0x00007ffff5becd97 in () at /usr/lib/libgdk-x11-2.0.so.0
#5 0x00007ffff58d6a00 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#6 0x00007ffff58d7046 in () at /usr/lib/libglib-2.0.so.0
#7 0x00007ffff58d729a in g_main_context_pending () at /usr/lib/libglib-2.0.so.0
#8 0x00007ffff5f75fea in gtk_events_pending () at /usr/lib/libgtk-x11-2.0.so.0
#9 0x00007ffff7bb0786 in wxApp::DoIdle() () at /usr/lib/libwx_gtk2u_core-3.0.so.0
#10 0x00007ffff7bb08b4 in () at /usr/lib/libwx_gtk2u_core-3.0.so.0
#11 0x00007ffff58d526f in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#12 0x00007ffff58d71b1 in () at /usr/lib/libglib-2.0.so.0
#13 0x00007ffff58d80c3 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#14 0x00007ffff5f75df3 in gtk_main () at /usr/lib/libgtk-x11-2.0.so.0
#15 0x00007ffff7bce1b6 in wxGUIEventLoop::DoRun() () at /usr/lib/libwx_gtk2u_core-3.0.so.0
#16 0x00007ffff7762bae in wxEventLoopBase::Run() () at /usr/lib/libwx_baseu-3.0.so.0
#17 0x00007ffff7c378f1 in wxDialog::ShowModal() () at /usr/lib/libwx_gtk2u_core-3.0.so.0
#18 0x0000555555649e56 in CreateStandardReverbZoneDialog::CreateStandardReverbZoneDialog(wxString const&, EffectsManager*)
(this=0x555555effb20, title=..., effects_manager=0x555555c91300)
at /home/pab/CodeProj/cxx_projects/binaural-audio-editor/src/CreateStandardReverbZoneDialog.cpp:298
#19 0x000055555562d923 in MainFrame::OnCreateStandardReverbZone(wxCommandEvent&) (this=0x555555826bf0, event=...)
at /home/pab/CodeProj/cxx_projects/binaural-audio-editor/src/osgViewerWX.cpp:808
#20 0x00007ffff789589e in wxEvtHandler::ProcessEventIfMatchesId(wxEventTableEntryBase const&, wxEvtHandler*, wxEvent&) ()
at /usr/lib/libwx_baseu-3.0.so.0
#21 0x00007ffff78959a4 in wxEventHashTable::HandleEvent(wxEvent&, wxEvtHandler*) () at /usr/lib/libwx_baseu-3.0.so.0
#22 0x00007ffff7895cde in wxEvtHandler::TryHereOnly(wxEvent&) () at /usr/lib/libwx_baseu-3.0.so.0
#23 0x00007ffff7895d64 in wxEvtHandler::ProcessEventLocally(wxEvent&) () at /usr/lib/libwx_baseu-3.0.so.0
#24 0x00007ffff7895e02 in wxEvtHandler::ProcessEvent(wxEvent&) () at /usr/lib/libwx_baseu-3.0.so.0
#25 0x00007ffff7d9ee6b in wxWindowBase::TryAfter(wxEvent&) () at /usr/lib/libwx_gtk2u_core-3.0.so.0
#26 0x00007ffff7895ba7 in wxEvtHandler::SafelyProcessEvent(wxEvent&) () at /usr/lib/libwx_baseu-3.0.so.0
#27 0x00007ffff7d554ea in wxMenuBase::SendEvent(int, int) () at /usr/lib/libwx_gtk2u_core-3.0.so.0
#28 0x00007ffff7c4e6dc in () at /usr/lib/libwx_gtk2u_core-3.0.so.0
#29 0x00007ffff59c1d5a in g_closure_invoke () at /usr/lib/libgobject-2.0.so.0
#30 0x00007ffff59af88e in () at /usr/lib/libgobject-2.0.so.0
#31 0x00007ffff59b398a in g_signal_emit_valist () at /usr/lib/libgobject-2.0.so.0
#32 0x00007ffff59b47f0 in g_signal_emit () at /usr/lib/libgobject-2.0.so.0
#33 0x00007ffff6091f38 in gtk_widget_activate () at /usr/lib/libgtk-x11-2.0.so.0
#34 0x00007ffff5f8ae71 in gtk_menu_shell_activate_item () at /usr/lib/libgtk-x11-2.0.so.0
#35 0x00007ffff5f8b140 in () at /usr/lib/libgtk-x11-2.0.so.0
#36 0x00007ffff5f787cc in () at /usr/lib/libgtk-x11-2.0.so.0
#37 0x00007ffff59c1d5a in g_closure_invoke () at /usr/lib/libgobject-2.0.so.0
#38 0x00007ffff59aeff8 in () at /usr/lib/libgobject-2.0.so.0
#39 0x00007ffff59b2f1c in g_signal_emit_valist () at /usr/lib/libgobject-2.0.so.0
#40 0x00007ffff59b47f0 in g_signal_emit () at /usr/lib/libgobject-2.0.so.0
#41 0x00007ffff6093235 in () at /usr/lib/libgtk-x11-2.0.so.0
#42 0x00007ffff5f76a0e in gtk_propagate_event () at /usr/lib/libgtk-x11-2.0.so.0
#43 0x00007ffff5f76e43 in gtk_main_do_event () at /usr/lib/libgtk-x11-2.0.so.0
#44 0x00007ffff5befd5e in () at /usr/lib/libgdk-x11-2.0.so.0
#45 0x00007ffff58d539e in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#46 0x00007ffff58d71b1 in () at /usr/lib/libglib-2.0.so.0
#47 0x00007ffff58d80c3 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#48 0x00007ffff5f75df3 in gtk_main () at /usr/lib/libgtk-x11-2.0.so.0
#49 0x00007ffff7bce1b6 in wxGUIEventLoop::DoRun() () at /usr/lib/libwx_gtk2u_core-3.0.so.0
#50 0x00007ffff7762bae in wxEventLoopBase::Run() () at /usr/lib/libwx_baseu-3.0.so.0
#51 0x00007ffff7727517 in wxAppConsoleBase::MainLoop() () at /usr/lib/libwx_baseu-3.0.so.0
#52 0x00007ffff77af4c8 in wxEntry(int&, wchar_t**) () at /usr/lib/libwx_baseu-3.0.so.0
#53 0x0000555555629134 in main(int, char**) (argc=1, argv=0x7fffffffe3e8)

[adct-the-experimenter]

Resolved.

Pause source instead of stopping source which for some reason crashed when stopped and had an effect applied to it.