(gdb) p *this
Cannot access memory at address 0x61782f36
(gdb) where
#0  0xb07dffbb in Timeline::HasBeginTime (this=0x61782f36) at clock.cpp:1321
#1  0xb07e0734 in ClockGroup::ComputeBeginTime (this=0x91c8c08) at clock.cpp:1079
#2  0xb07ce1ce in Storyboard::Begin (this=0x9217880) at animation.cpp:343
#3  0xb3598d50 in MoonlightStoryboardObject::Invoke (this=0x8fceeb0, id=32794, name=0x90a551c, args=0xbf99ccf0, argCount=0, result=0xbf99cd50) at plugin-class.cpp:2788
#4  0xb359c808 in _invoke (npobj=0x8fceeb4, name=0x90a551c, args=0xbf99ccf0, argCount=0, result=0xbf99cd50) at plugin-class.cpp:1342
#5  0x0824bcae in ?? ()
#6  0x08fceeb4 in ?? ()
#7  0x090a551c in ?? ()
#8  0xbf99ccf0 in ?? ()
#9  0x00000000 in ?? ()
(gdb) up
#1  0xb07e0734 in ClockGroup::ComputeBeginTime (this=0x91c8c08) at clock.cpp:1079
1079            begin_time = GetParentTime() + (timeline->HasBeginTime() ? timeline->GetBeginTime() : 0);
(gdb) p timeline
$2 = (TimelineGroup *) 0x61782f36