Unreal Engine Issues
Unreal Engine Issues
Editor crashes when creating a new level while the current level contains an Actor with an Actor Sequence Component
UE - Anim - Sequencer - Jan 5, 2022This is not a regression. Tested in: //UE5/Main CL18218925 Binary - Crashed //UE5/Release-5.0 CL16682836 Binary - Crashed //UE4/Release-4.27 CL Binary - Crashed Having a level open that contains a ...
Editor crash when adding elements to blueprint Set/Map
UE - Gameplay - Blueprint - Mar 22, 2017Adding multiple element to TMap / TSet variable at once with a for loop causes the editor to lock up / crash (respectively). Regression: No - Map & Set variable types not available prior to 4.15 ...
GameplayTagContainers can cause a crash in packaged builds when Event Driven Loading is enabled
UE - Gameplay - Dec 15, 2017A user has reported that using a GameplayTagContainer can cause a packaged build to crash when EDL is enabled in certain cases. In this case, if the base C++ class that includes this GameplayTagCont ...
Crash after Disabling Post Process Blueprint on a Skeletal Mesh
OLD - Anim - Aug 20, 2019Changing the Anim Class in the Details Panel before Disable Post Process Blueprint can prevent the crash from occurring. Changing the Animation Mode does not seem to prevent this crash. The conten ...
Adding a code class to a blueprint project causes the editor to crash
UE - Foundation - Core - Oct 5, 2017Adding a code class to a blueprint project causes the editor to crash after attempting to hot reload. This only occurs for a fully bluprint project, code projects or BP projects that have already h ...
Editor crash when attempting to access Window menu bar after compiling plugin through the editor
UE - Foundation - Cpp Tools - Plugin System - Jan 27, 2016The editor will crash if the Window menu button next to Edit is pressed after compiling a toolbar plugin through the editor and attempting to click/use it. ...
Blueprint interface function with the same name as a node gets fused
UE - Gameplay - Blueprint - Nov 29, 2017Creating a Blueprint interface and changing its function name causes a crash when using the undo button to change the name back. ...
[Interchange] Ensure when re-importing an asset that was import with a blueprint pipeline
UE - Editor - Content Pipeline - Import and Export - Mar 14, 2025The issue is in UInterchangeAssetImportData::ProcessPipelinesCache() The following iteration do not find blueprint pipeline, not sure about python pipeline, it need to be test. TMap<FString, UClas ...
Intermittent Crash in SGraphNode when saving
UE - Gameplay - Blueprint Editor - Apr 5, 2016Licensee observed crash in SGraphNode after modifying comments on blueprint nodes and saving. Has seen similar crashes before, unable to figure out how to reproduce them. ...
Parameter distributions can be reset to None in Cascade Particle Systems, causing Cascade to Niagara conversion to crash the editor.
UE - Niagara - Apr 18, 2022Cascade to Niagara conversion causes the editor to crash due to any distribution parameter in the Particle Emitter being reset to none. Repro Rate: 4/4 Tested this in //UE4/Release-4.27 @ CL# 1831 ...