Unreal Engine Issues
Unreal Engine Issues
Crash when closing the timeline tab inside UMG editor and reopening UMG editor
UE - Editor - UI Systems - Aug 16, 2016Crash when closing the timeline tab inside UMG editor and reopening UMG editor Reported here:https://udn.unrealengine.com/questions/307297/umg%E3%82%A8%E3%83%86%E3%82%A3%E3%82%BF%E8%B5%B7%E5%8B%95% ...
Landscape Components No Longer Editable after Undoing Component Deletion
UE - LD & Modeling - Terrain - Landscape - Oct 20, 2015When working in Manage Mode with Landscapes and deleting a component, if you undo the deletion, you can no longer modify or select the component. I did attempt to rebuild the scenes lighting and ge ...
[CrashReport] ULevel::GetWorldSettings - UStaticMeshThumbnailRenderer::Draw
Tools - Oct 30, 2017This is a common crash that has occurred since at least 4.14. The callstack is nearly identical to [Link Removed], which appears to be fixed in 4.18; and [Link Removed], which has not. The differen ...
Pose watches don't display correctly with compatible skeletons
UE - Anim - Runtime - Anim Blueprints - Aug 19, 2022"Hello, we've found a quirk with ABP's pose watch and compatible skeletons. Same setup as above. We have skeleton A as the base and skeleton B as a compatible skeleton. They both share similar hiera ...
Disabling DFAO prevents landscape from contributing to Lumen scene
UE - Graphics Features - Lumen - Oct 10, 2023From licensee: We disabled DFAO on our project (using r.DistanceFieldAO 0) to replace it with Lumen occlusion, as the combination of both was creating dark blobs under bushes and grass. However, we ...
Keyboard Shortcuts don't work on the Outliner Window if it is detached from the Main Window
UE - Editor - Workflow Systems - May 27, 2025Keyboard Shortcuts don't work on the Outliner Window if it is detached from the Main Window. As described in Steps To Reproduce, as soon as the Outliner Window is detached from the Main Window, most ...
The hierarchy of Actors in LevelInstances can break when using BPs as parent
UE - World Creation - Worldbuilding Tools - Level Instances - Feb 18, 2026The hierarchy of a LevelInstance actors (Outliner) will break when cooking. The source is the call to AActor::RerunConstructionScripts in FWorldPartitionLevelHelper::MoveExternalActorsToLevel. The ...
When typing Korean in Slate using FTextInputMethodContext, characters outside a specific range are not entered
UE - Editor - UI Systems - Slate - Apr 7, 2026Descriptions After getting the below message LogTextStoreACP: Verbose: GetTextExt - From 33 to 34 A line break past that range is inserted. However, when typing Korean, the correct range is not s ...
Crash when adding multiple collision types to a mesh
Tools - Jan 27, 2017Adding various collision types to a single mesh will cause it to hard crash the editor. No Crash Reporter window will open. Note that this happens with the user's mesh, but I was not able to repro ...
Datasmith files containing special characters do not import correctly in Unreal
UE - Editor - Content Pipeline - Datasmith - Exporters - Oct 10, 2018User is experiencing an import issue with a 3DS Max 2019 file. Their workflow is as follows and works for all their assets but this one:Original file created in revit 2019Import revit link to 3dsmax ...