#0  Set<BaseButton*, Comparator<BaseButton*>, DefaultAllocator>::front (this=0xd7ece58) at core/set.h:573
#1  0x000000000266077a in BaseButton::_unpress_group (this=0x1cae8080) at scene/gui/base_button.cpp:47
#2  0x0000000002661a64 in BaseButton::_gui_input (this=0x1cae8080, p_event=...) at scene/gui/base_button.cpp:155
#3  0x0000000001d21f17 in MethodBind1<Ref<InputEvent> >::call (this=0x65b18b0, p_object=0x1cae8080, p_args=0x7fffffffabd0, p_arg_count=1, r_error=...) at core/method_bind.gen.inc:729
#4  0x0000000003e39b75 in Object::call_multilevel (this=0x1cae8080, p_method=..., p_args=0x7fffffffabd0, p_argcount=1) at core/object.cpp:752
#5  0x0000000003e3aa65 in Object::call_multilevel (this=0x1cae8080, p_name=..., p_arg1=..., p_arg2=..., p_arg3=..., p_arg4=..., p_arg5=...) at core/object.cpp:858
#6  0x00000000025f4667 in Viewport::_gui_call_input (this=0x6c06bd0, p_control=0x1cae8080, p_input=...) at scene/main/viewport.cpp:1439
#7  0x00000000025f6be7 in Viewport::_gui_input_event (this=0x6c06bd0, p_event=...) at scene/main/viewport.cpp:1785
#8  0x00000000025fd26c in Viewport::input (this=0x6c06bd0, p_event=...) at scene/main/viewport.cpp:2477
#9  0x00000000025f2ad4 in Viewport::_vp_input (this=0x6c06bd0, p_ev=...) at scene/main/viewport.cpp:1221
#10 0x00000000012bf759 in MethodBind1<Ref<InputEvent> const&>::call (this=0x6564440, p_object=0x6c06bd0, p_args=0x7fffffffc520, p_arg_count=1, r_error=...) at core/method_bind.gen.inc:729
#11 0x0000000003e3aef5 in Object::call (this=0x6c06bd0, p_method=..., p_args=0x7fffffffc520, p_argcount=1, r_error=...) at core/object.cpp:918
#12 0x0000000003e3a9ba in Object::call (this=0x6c06bd0, p_name=..., p_arg1=..., p_arg2=..., p_arg3=..., p_arg4=..., p_arg5=...) at core/object.cpp:842
#13 0x0000000002629d9e in SceneTree::call_group_flags (this=0x6a26290, p_call_flags=2, p_group=..., p_function=..., p_arg1=..., p_arg2=..., p_arg3=..., p_arg4=..., p_arg5=...)
    at scene/main/scene_tree.cpp:262
#14 0x000000000262b1b9 in SceneTree::input_event (this=0x6a26290, p_event=...) at scene/main/scene_tree.cpp:418
#15 0x0000000000edf358 in InputDefault::_parse_input_event_impl (this=0x64403e0, p_event=..., p_is_emulated=false) at main/input_default.cpp:417
#16 0x0000000000ede4ae in InputDefault::parse_input_event (this=0x64403e0, p_event=...) at main/input_default.cpp:259
#17 0x0000000000ecbaac in OS_X11::process_xevents (this=0x7fffffffd150) at platform/x11/os_x11.cpp:1928
#18 0x0000000000ecfdc1 in OS_X11::run (this=0x7fffffffd150) at platform/x11/os_x11.cpp:2635
#19 0x0000000000ec2d3b in main (argc=3, argv=0x7fffffffd7d8) at platform/x11/godot_x11.cpp:55