When I'm painting in my selection mask, if I flip the pen to use the eraser artrage instantly crashes. This is all the information that I can provide:

* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x8)
* frame #0: 0x000000010047a6dd ArtRage 5`CSelectionTool::CTmpErase::~CTmpErase() + 23
frame #1: 0x000000010033496b ArtRage 5`CDeleter<CSelectionTool::CTmpErase*>:elete() + 35
frame #2: 0x000000010032731a ArtRage 5`CCanvas::CanvasLDown(void*, CWidget*, CWidget*&, gCPoint&) + 2936
frame #3: 0x000000010010f82d ArtRage 5`CWidget::PassButtonDownL(CWidget*&, gCPoint&) + 395
frame #4: 0x000000010010f784 ArtRage 5`CWidget::PassButtonDownL(CWidget*&, gCPoint&) + 226
frame #5: 0x000000010000b0b6 ArtRage 5`CWindowBase::OnLButtonDown(gCPoint) + 194
frame #6: 0x000000010050bc48 ArtRage 5`-[MainView mouseDown:] + 635
frame #7: 0x00007fff790c02bf AppKit`-[NSWindow(NSEventRouting) _handleMouseDownEvent:isDelayedEvent:] + 6341
frame #8: 0x00007fff790bcadc AppKit`-[NSWindow(NSEventRouting) _reallySendEvent:isDelayedEvent:] + 1942
frame #9: 0x00007fff790bbf7a AppKit`-[NSWindow(NSEventRouting) sendEvent:] + 541
frame #10: 0x00007fff78f406f1 AppKit`-[NSApplication(NSEvent) sendEvent:] + 1145
frame #11: 0x00007fff787bb7f7 AppKit`-[NSApplication run] + 1002
frame #12: 0x00007fff787861de AppKit`NSApplicationMain + 1237
frame #13: 0x000000010000d849 ArtRage 5`main_b(int, char**) + 9
frame #14: 0x0000000100509e1d ArtRage 5`main + 71
frame #15: 0x0000000100001a04 ArtRage 5`start + 52