Why does editor 4.17.1 Crash?

An intermittent program stretches out during the use of the editor. The log is attached because the reason is unknown.

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION 0x006656e2

0x00000000006656E2
icuuc53.dll!0x000000006656F718
icuuc53.dll!0x00000000665CA138
icuuc53.dll!0x00000000665CA6C3
UE4Editor-Core.dll!FICUBreakIteratorManager::DestroyIterator() [j:\ue4\engine\unrealengine-release\engine\source\runtime\core\private\internationalization\icubreakiterator.cpp:71]
UE4Editor-Core.dll!FICUBreakIterator::scalar deleting destructor'() UE4Editor-Slate.dll!FTextLayout::~FTextLayout() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slate\private\framework\text\textlayout.cpp:2519] UE4Editor-Slate.dll!FSlateTextLayout::vector deleting destructor’()
UE4Editor-Slate.dll!FTextBlockLayout::~FTextBlockLayout()
UE4Editor-Slate.dll!STextBlock::~STextBlock() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slate\private\widgets\text\stextblock.cpp:23]
UE4Editor-SlateCore.dll!FSimpleSlot::~FSimpleSlot()
UE4Editor-SlateCore.dll!SCompoundWidget::~SCompoundWidget()
UE4Editor-SlateCore.dll!FSimpleSlot::~FSimpleSlot()
UE4Editor-SlateCore.dll!SCompoundWidget::~SCompoundWidget()
UE4Editor-SlateCore.dll!SWidget::~SWidget() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:142]
UE4Editor-SlateCore.dll!FSimpleSlot::~FSimpleSlot()
UE4Editor-SlateCore.dll!SCompoundWidget::~SCompoundWidget()
UE4Editor-SlateCore.dll!TIndirectArray::DestructAndFreeItems() [j:\ue4\engine\unrealengine-release\engine\source\runtime\core\public\containers\indirectarray.h:444]
UE4Editor-SlateCore.dll!SBoxPanel::~SBoxPanel()
UE4Editor-SlateCore.dll!TIndirectArray::DestructAndFreeItems() [j:\ue4\engine\unrealengine-release\engine\source\runtime\core\public\containers\indirectarray.h:444]
UE4Editor-SlateCore.dll!SBoxPanel::~SBoxPanel()
UE4Editor-SlateCore.dll!FSimpleSlot::~FSimpleSlot()
UE4Editor-SlateCore.dll!SCompoundWidget::~SCompoundWidget()
UE4Editor-SceneOutliner.dll!SListView >::FWidgetGenerator::OnEndGenerationPass() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slate\public\widgets\views\slistview.h:531]
UE4Editor-SceneOutliner.dll!SListView >::ReGenerateItems() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slate\public\widgets\views\slistview.h:986]
UE4Editor-Slate.dll!STableViewBase::Tick() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slate\private\widgets\views\stableviewbase.cpp:249]
UE4Editor-SceneOutliner.dll!STreeView >::Tick() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slate\public\widgets\views\streeview.h:466]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:859]
UE4Editor-SlateCore.dll!SOverlay::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\soverlay.cpp:97]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SPanel::PaintArrangedChildren() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\spanel.cpp:31]
UE4Editor-SlateCore.dll!SPanel::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\spanel.cpp:12]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:35]
UE4Editor-Slate.dll!SBorder::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slate\private\widgets\layout\sborder.cpp:85]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:35]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:35]
UE4Editor-Slate.dll!SBorder::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slate\private\widgets\layout\sborder.cpp:85]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:35]
UE4Editor-Slate.dll!SBorder::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slate\private\widgets\layout\sborder.cpp:85]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SOverlay::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\soverlay.cpp:97]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SPanel::PaintArrangedChildren() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\spanel.cpp:31]
UE4Editor-SlateCore.dll!SPanel::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\spanel.cpp:12]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:35]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SPanel::PaintArrangedChildren() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\spanel.cpp:31]
UE4Editor-Slate.dll!SSplitter::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slate\private\widgets\layout\ssplitter.cpp:167]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:35]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SPanel::PaintArrangedChildren() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\spanel.cpp:31]
UE4Editor-Slate.dll!SSplitter::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slate\private\widgets\layout\ssplitter.cpp:167]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SOverlay::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\soverlay.cpp:97]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:35]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SPanel::PaintArrangedChildren() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\spanel.cpp:31]
UE4Editor-SlateCore.dll!SPanel::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\spanel.cpp:12]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:35]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:35]
UE4Editor-Slate.dll!SBorder::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slate\private\widgets\layout\sborder.cpp:85]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SOverlay::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\soverlay.cpp:97]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SPanel::PaintArrangedChildren() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\spanel.cpp:31]
UE4Editor-SlateCore.dll!SPanel::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\spanel.cpp:12]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:35]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SPanel::PaintArrangedChildren() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\spanel.cpp:31]
UE4Editor-Slate.dll!SSplitter::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slate\private\widgets\layout\ssplitter.cpp:167]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SOverlay::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\soverlay.cpp:97]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:35]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SPanel::PaintArrangedChildren() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\spanel.cpp:31]
UE4Editor-SlateCore.dll!SPanel::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\spanel.cpp:12]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SPanel::PaintArrangedChildren() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\spanel.cpp:31]
UE4Editor-SlateCore.dll!SPanel::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\spanel.cpp:12]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SOverlay::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\soverlay.cpp:97]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-SlateCore.dll!SCompoundWidget::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\scompoundwidget.cpp:35]
UE4Editor-SlateCore.dll!SWindow::OnPaint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swindow.cpp:1845]
UE4Editor-SlateCore.dll!SWidget::Paint() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slatecore\private\widgets\swidget.cpp:885]
UE4Editor-Slate.dll!FSlateApplication::DrawWindowAndChildren() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1231]
UE4Editor-Slate.dll!FSlateApplication::PrivateDrawWindows() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1471]
UE4Editor-Slate.dll!FSlateApplication::DrawWindows() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1188]
UE4Editor-Slate.dll!FSlateApplication::TickApplication() [j:\ue4\engine\unrealengine-release\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:1773]

Did you tried to reinstall the engine? If yes, try to download newer version. If you prefer to stay on 4.17.1, try to build it from source: GitHub