(lldb) bt * thread #1, queue = 'com.apple.main-thread', stop reason = hit program assert frame #0: 0x0000000188b560dc libsystem_kernel.dylib`__pthread_kill + 8 frame #1: 0x0000000188b8dcc0 libsystem_pthread.dylib`pthread_kill + 288 frame #2: 0x0000000188a99a40 libsystem_c.dylib`abort + 180 frame #3: 0x0000000188a98d30 libsystem_c.dylib`__assert_rtn + 284 frame #4: 0x000000039578bc34 libswlo.dylib`rtl::OUString::subView(this=0x0000000393b643e8, beginIndex=31, count=-31) const at ustring.hxx:2241:9 * frame #5: 0x000000039632ad80 libswlo.dylib`SwTextNode::CutImpl(this=0x0000000393b64290, pDest=0x0000000303d929d0, rDestStart=0x000000016fdfaf40, rStart=0x000000037ad6fad8, nLen=-31, bUpdate=true) at ndtxt.cxx:2553:32 frame #6: 0x0000000395a0cfbc libswlo.dylib`SwTextNode::CutText(this=0x0000000393b64290, pDest=0x0000000303d929d0, rDestStart=0x000000016fdfaf40, rStart=0x000000037ad6fad8, nLen=-31) at ndtxt.hxx:915:5 frame #7: 0x0000000395d36a44 libswlo.dylib`SwNodes::MoveRange(this=0x0000600002d9d880, rPam=0x000000037ad6f9d0, rPos=0x000000016fdfb188, rNodes=0x0000600002d9ddc0) at nodes.cxx:1555:25 frame #8: 0x00000003963c3aa4 libswlo.dylib`SwUndoSaveContent::MoveToUndoNds(rPaM=0x000000037ad6f9d0, pNodeIdx=0x0000600003ca4cf0, pEndNdIdx=0x0000000000000000) at undobj.cxx:788:25 frame #9: 0x0000000396428e90 libswlo.dylib`SwUndoInserts::UndoImpl(this=0x0000600003ca4c40, rContext=0x000000016fdfb790) at untblk.cxx:320:13 frame #10: 0x00000003963c14e4 libswlo.dylib`SwUndo::UndoWithContext(this=0x0000600003ca4c40, rContext=0x000000016fdfb790) at undobj.cxx:225:5 frame #11: 0x00000001050898b4 libsvllo.dylib`SfxListUndoAction::UndoWithContext(this=0x0000600002fad4a0, i_context=0x000000016fdfb790) at undo.cxx:1331:37 frame #12: 0x00000001050898b4 libsvllo.dylib`SfxListUndoAction::UndoWithContext(this=0x0000600002fad140, i_context=0x000000016fdfb790) at undo.cxx:1331:37 frame #13: 0x00000001050851a8 libsvllo.dylib`SfxUndoManager::ImplUndo(this=0x0000600003146890, i_contextOrNull=0x000000016fdfb790) at undo.cxx:715:22 frame #14: 0x0000000105085518 libsvllo.dylib`SfxUndoManager::UndoWithContext(this=0x0000600003146890, i_context=0x000000016fdfb790) at undo.cxx:667:12 frame #15: 0x000000039639b3b4 libswlo.dylib`sw::UndoManager::impl_DoUndoRedo(this=0x0000600003146890, undoOrRedo=Undo, nUndoOffset=0) at docundo.cxx:700:32 frame #16: 0x000000039639b620 libswlo.dylib`sw::UndoManager::UndoWithOffset(this=0x0000600003146890, nUndoOffset=0) at docundo.cxx:735:16 frame #17: 0x0000000395e169f0 libswlo.dylib`SwEditShell::Undo(this=0x0000000130261400, nCount=1, nOffset=0) at edundo.cxx:141:57 frame #18: 0x0000000397038680 libswlo.dylib`SwWrtShell::Do(this=0x0000000130261400, eDoType=UNDO, nCnt=1, nOffset=0) at wrtundo.cxx:45:26 frame #19: 0x0000000396c551e0 libswlo.dylib`SwBaseShell::ExecUndo(this=0x000060001293b480, rReq=0x000000016fdfc930) at basesh.cxx:653:27 frame #20: 0x0000000396c54cb8 libswlo.dylib`SfxStubSwBaseShellExecUndo(pShell=0x000060001293b480, rReq=0x000000016fdfc930) at swslots.hxx:2223:1 frame #21: 0x0000000108e8a85c libsfxlo.dylib`SfxDispatcher::Call_Impl(this=0x0000600000613a20, rShell=0x000060001293b480, rSlot=0x00000003973755b0, rReq=0x000000016fdfc930, bRecord=true) at dispatch.cxx:254:9 frame #22: 0x0000000108e8f690 libsfxlo.dylib`SfxDispatcher::Execute_(this=0x0000600000613a20, rShell=0x000060001293b480, rSlot=0x00000003973755b0, rReq=0x000000016fdfc930, eCallMode=RECORD) at dispatch.cxx:753:9 frame #23: 0x0000000108e7a0a8 libsfxlo.dylib`SfxBindings::Execute_Impl(this=0x00006000065d65d0, aReq=0x000000016fdfc930, pSlot=0x00000003973755b0, pShell=0x000060001293b480) at bindings.cxx:1057:22 frame #24: 0x0000000108f416c4 libsfxlo.dylib`SfxDispatchController_Impl::dispatch(this=0x0000600003cdf3a0, aURL=0x0000600003e99cb0, aArgs=0x000000016fdfcd98, rListener=0x000000016fdfccd0) at unoctitm.cxx:688:53 frame #25: 0x0000000108f402e0 libsfxlo.dylib`SfxOfficeDispatch::dispatch(this=0x00006000036de6d0, aURL=0x0000600003e99cb0, aArgs=0x000000016fdfcd98) at unoctitm.cxx:250:20 frame #26: 0x0000000106e833bc libsvtlo.dylib`svt::(anonymous namespace)::AsyncAccelExec::impl_ts_asyncCallback(this=0x0000600003e99c70, (null)=0x0000000000000000) at acceleratorexecute.cxx:508:26 frame #27: 0x0000000106e8300c libsvtlo.dylib`svt::(anonymous namespace)::AsyncAccelExec::LinkStubimpl_ts_asyncCallback(instance=0x0000600003e99c70, data=0x0000000000000000) at acceleratorexecute.cxx:500:1 frame #28: 0x0000000114f7a408 libvcllo.dylib`Link::Call(this=0x0000600003e99d10, data=0x0000000000000000) const at link.hxx:111:45 frame #29: 0x0000000115894008 libvcllo.dylib`vcl::EventPoster::DoEvent_Impl(this=0x0000600003e99d08, (null)=0x0000000000000000) at evntpost.cxx:52:13 frame #30: 0x0000000115893fc0 libvcllo.dylib`vcl::EventPoster::LinkStubDoEvent_Impl(instance=0x0000600003e99d08, data=0x0000000000000000) at evntpost.cxx:48:1 frame #31: 0x00000001151f8254 libvcllo.dylib`Link::Call(this=0x0000600006580dc8, data=0x0000000000000000) const at link.hxx:111:45 frame #32: 0x00000001151f523c libvcllo.dylib`ImplHandleUserEvent(pSVEvent=0x0000600006580dc0) at winproc.cxx:2287:30 frame #33: 0x00000001151f1fcc libvcllo.dylib`ImplWindowFrameProc(_pWindow=0x0000600002d27a30, nEvent=UserEvent, pEvent=0x0000600006580dc0) at winproc.cxx:2851:13 frame #34: 0x000000011180e7cc libvclplug_osxlo.dylib`SalFrame::CallCallback(this=0x000000015017ae40, nEvent=UserEvent, pEvent=0x0000600006580dc0) const at salframe.hxx:310:29 frame #35: 0x000000011182604c libvclplug_osxlo.dylib`AquaSalInstance::ProcessEvent(this=0x000000012760c2b0, aEvent=(m_pFrame = 0x000000015017ae40, m_pData = 0x0000600006580dc0, m_nEvent = UserEvent)) at salinst.cxx:427:22 frame #36: 0x00000001158a68ac libvcllo.dylib`SalUserEventList::DispatchUserEvents(bool)::$_0::operator()(this=0x000000016fdfd720) const at salusereventlist.cxx:119:58 frame #37: 0x00000001158a62fc libvcllo.dylib`SalUserEventList::DispatchUserEvents(this=0x000000012760c2b0, bHandleAllCurrentEvents=false) at salusereventlist.cxx:120:13 frame #38: 0x0000000111826c94 libvclplug_osxlo.dylib`AquaSalInstance::DoYield(this=0x000000012760c2b0, bWait=true, bHandleAllCurrentEvents=false) at salinst.cxx:571:71 frame #39: 0x0000000115967c84 libvcllo.dylib`ImplYield(i_bWait=true, i_bAllEvents=false) at svapp.cxx:390:48 frame #40: 0x0000000115967688 libvcllo.dylib`Application::Yield() at svapp.cxx:474:5 frame #41: 0x0000000115967400 libvcllo.dylib`Application::Execute() at svapp.cxx:368:13 frame #42: 0x0000000101006efc libsofficeapp.dylib`desktop::Desktop::Main(this=0x000000016fdff1f8) at app.cxx:1614:13 frame #43: 0x0000000115985f60 libvcllo.dylib`ImplSVMain() at svmain.cxx:229:35 frame #44: 0x0000000111826194 libvclplug_osxlo.dylib`AquaSalInstance::handleAppDefinedEvent(pEvent=0x0000600003060300) at salinst.cxx:448:20 frame #45: 0x00000001118ba554 libvclplug_osxlo.dylib`-[VCL_NSApplication sendEvent:](self=0x0000000127705840, _cmd="sendEvent:", pEvent=0x0000600003060300) at vclnsapp.mm:92:9 frame #46: 0x000000018c86e908 AppKit`-[NSApplication _handleEvent:] + 60 frame #47: 0x000000018c439d74 AppKit`-[NSApplication run] + 512 frame #48: 0x000000018c411014 AppKit`NSApplicationMain + 880 frame #49: 0x000000011182ae78 libvclplug_osxlo.dylib`AquaSalInstance::SVMainHook(this=0x000000012760c2b0, pnInit=0x000000016fdff148) at salinst.cxx:1087:5 frame #50: 0x0000000115985f20 libvcllo.dylib`ImplSVMain() at svmain.cxx:222:54 frame #51: 0x0000000115987820 libvcllo.dylib`SVMain() at svmain.cxx:261:12 frame #52: 0x0000000101085600 libsofficeapp.dylib`soffice_main at sofficemain.cxx:94:12 frame #53: 0x0000000100003f44 soffice`sal_main at main.c:51:15 frame #54: 0x0000000100003f1c soffice`main(argc=1, argv=0x000000016fdff558) at main.c:49:1 frame #55: 0x000000018880d0e0 dyld`start + 2360