FF 5.0.9 
OSX 10.10
Application Specific Information:
Assertion failed: (shape[0] == SHAPE_START), function assert_check_shape, file Regions/shape.c, line 156.
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib        	0x9534169a __pthread_kill + 10
1   libsystem_pthread.dylib       	0x9c1c9634 pthread_kill + 101
2   libsystem_c.dylib             	0x91eadde2 abort + 156
3   libsystem_c.dylib             	0x91e767b9 __assert_rtn + 399
4   com.apple.CoreGraphics        	0x97d3950f assert_check_shape + 122
5   com.apple.CoreGraphics        	0x97d39984 final_check + 37
6   com.apple.CoreGraphics        	0x97d67335 shape_intersect + 624
7   com.apple.CoreGraphics        	0x97d6b95f CGRegionCreateIntersectionWithRegion + 119
8   com.apple.CoreGraphics        	0x97d6b8de CGSIntersectRegion + 28
9   com.apple.HIServices          	0x96e8bb81 CreateIntersection(__HIShape const*, __HIShape const*, CGSRegionObject**) + 132
10  com.apple.HIServices          	0x96e8be4f HIShapeCreateIntersection + 35
11  com.apple.HIToolbox           	0x9970f450 HIView::BuildAggregateInvalidRegion(__HIShape*) + 346
12  com.apple.HIToolbox           	0x9970f356 HIView::BuildAggregateInvalidRegion(__HIShape*) + 96
13  com.apple.HIToolbox           	0x9970f356 HIView::BuildAggregateInvalidRegion(__HIShape*) + 96
14  com.apple.HIToolbox           	0x9970f356 HIView::BuildAggregateInvalidRegion(__HIShape*) + 96
15  com.apple.HIToolbox           	0x9970f356 HIView::BuildAggregateInvalidRegion(__HIShape*) + 96
16  com.apple.HIToolbox           	0x997e1988 HIView::DetermineAreaToPaint(OpaqueGrafPtr*, unsigned long, __HIShape const*) + 40
17  com.apple.HIToolbox           	0x997e10ee HIView::DrawComposited(short, OpaqueGrafPtr*, __HIShape const*, unsigned long, HIView*, CGContext*) + 146
18  com.apple.HIToolbox           	0x997e1010 HIView::Draw(short, OpaqueGrafPtr*, unsigned long) + 84
19  com.apple.HIToolbox           	0x997e0fb4 HIView::Render(unsigned long, CGContext*) + 46
20  com.apple.HIToolbox           	0x99719cd6 FlushWindowObject(WindowData*, void**, unsigned char) + 883
21  com.apple.HIToolbox           	0x99724662 FlushAllBuffers(__CFRunLoopObserver*, unsigned long, void*) + 251
22  com.apple.CoreFoundation      	0x9751081e __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 30
23  com.apple.CoreFoundation      	0x97510760 __CFRunLoopDoObservers + 400
24  com.apple.CoreFoundation      	0x97501a89 CFRunLoopRunSpecific + 361
25  com.apple.CoreFoundation      	0x9750190b CFRunLoopRunInMode + 123
26  com.apple.HIToolbox           	0x9971b8f8 RunCurrentEventLoopInMode + 262
27  com.apple.HIToolbox           	0x9971b503 ReceiveNextEventCommon + 192
28  com.apple.HIToolbox           	0x998c9178 ReceiveNextEvent + 90
29  com.FilterForge.FilterForge5  	0x007520a7 std::__1::__vector_base<std::__1::vector<std::__1::vector<unsigned int, std::__1::allocator<unsigned int> >, std::__1::allocator<std::__1::vector<unsigned int, std::__1::allocator<unsigned int> > > >, std::__1::allocator<std::__1::vector<std::__1::vector<unsigned int, std::__1::allocator<unsigned int> >, std::__1::allocator<std::__1::vector<unsigned int, std::__1::allocator<unsigned int> > > > > >::~__vector_base() + 7797
30  com.FilterForge.FilterForge5  	0x0075789b std::__1::__vector_base<std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> >, std::__1::allocator<std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> > > >::~__vector_base() + 235
31  com.FilterForge.FilterForge5  	0x009e9508 FFXLib::ComponentRegistrar<FFXLib::BricksPlus2>::get_class_interface_description() + 10144
32  com.FilterForge.FilterForge5  	0x009e9736 FFXLib::ComponentRegistrar<FFXLib::BricksPlus2>::get_class_interface_description() + 10702
33  com.FilterForge.FilterForge5  	0x00752ce1 std::__1::__vector_base<std::__1::vector<std::__1::vector<unsigned int, std::__1::allocator<unsigned int> >, std::__1::allocator<std::__1::vector<unsigned int, std::__1::allocator<unsigned int> > > >, std::__1::allocator<std::__1::vector<std::__1::vector<unsigned int, std::__1::allocator<unsigned int> >, std::__1::allocator<std::__1::vector<unsigned int, std::__1::allocator<unsigned int> > > > > >::~__vector_base() + 10927
34  com.FilterForge.FilterForge5  	0x0007f9b8 FFX::FetchingExceptionEvent::clone_object() const + 121408
35  com.FilterForge.FilterForge5  	0x00194ff9 FFX::OcclusionSettingsForm::~OcclusionSettingsForm() + 21541
36  com.FilterForge.FilterForge5  	0x001cd33d FFX::UsageStatsPermissionForm::~UsageStatsPermissionForm() + 2481
37  com.FilterForge.FilterForge5  	0x00a0813b XFW::Helpers::AssertionFailed::clone_object() const + 9469
38  com.FilterForge.FilterForge5  	0x00a0a052 XFW::Kernel::StdException::clone_object() const + 7666
39  com.FilterForge.FilterForge5  	0x00a06d76 XFW::Helpers::AssertionFailed::clone_object() const + 4408
40  com.FilterForge.FilterForge5  	0x00a07f38 XFW::Helpers::AssertionFailed::clone_object() const + 8954
41  com.FilterForge.FilterForge5  	0x00a0c61e std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const, std::__1::basic_string<wchar_t, std::__1::char_traits<wchar_t>, std::__1::allocator<wchar_t> > > > >::__construct_node_with_key(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) + 272
42  com.FilterForge.FilterForge5  	0x00002995 0x1000 + 6549
- I never expected the Spanish inquisition