Unreal Engine Issues
Unreal Engine Issues
Editor crashes when duplicating a Blueprint instance whose parent class overrides PreEditChange() without including a call to Super
UE - Gameplay - Blueprint - May 4, 2018Attempting to duplicate an instance of a Blueprint in a level where the parent code class has overridden PreEditChange() without including a call to Super results in the Editor crashing. ...
Mesh reduction crash with asset imported using FBX Scene Importer
UE - Graphics Features - Nov 30, 2016The editor will crash when using Mesh Reduction on an asset imported using the FBX Scene Import options. This same asset will not crash the editor if it has been imported using the normal Import opt ...
Using the "Convert Selected Components to Blueprint Class" feature on two blueprints will cause a crash
UE - Gameplay - Blueprint - Aug 12, 2015When trying to make a prefab (using the Convert Selected Components to Blueprint Class method )out of existing blueprints the editor will crash. ...
Creating a blueprint from selected components crashes editor if components contain a blueprint with a component
UE - Gameplay - Blueprint - Nov 4, 2015Frequency: 2/2 Crash Reporter: [Link Removed] Editor crashes if the option: "Convert Selected Components to Blueprint Class" is selected from main editor viewport>Blueprints context menu. This occu ...
Renaming actors between levels during PIE causes issues
UE - World Creation - Worldbuilding Tools - OFPA - Dec 4, 2023When renaming actors during PIE the actor generates a new, non memory/temporary, actor package underneath the PIE world- this is then causing checks in EnumerateMemoryAssetsHelper (in AssetRegistry. ...
Landscape can be added as a source in take recorder
UE - Anim - Sequencer - Jan 25, 2021Landscapes should not be able to be animated in sequences, and should not appear as options for sources in take recorder. ...
Crash when interacting with an Actor containing an Instanced Static Mesh that is in a Locked level
UE - Editor - Workflow Systems - Mar 30, 2023This is not a regression. Tested in //UE5/Release-5.1 CL23901901 Editor crashes with an assertion after interaction with an Instance Static Mesh component that is in a locked level. This doesn't af ...
During SIE (simulate) and ejected-PIE, modifying a map actor causes triggers RerunConstructionScript() which discards all runtime modifications to SCS components
UE - Framework - Blueprint Runtime - Sep 6, 2024When Simulating, or Playing-In-Editor and ejected, modifying an actor in the editor world causes the SIE/PIE runtime actor to recreate its blueprint added components via AActor::RerunConstructionScr ...
'Malformed sequence hierarchy' ensure hit after modifying sub-sequence tracks
UE - Anim - Sequencer - Sep 5, 2025It's possible for there to be multiple instances of the same sequence in the evaluation states cache if the same sequence is used in multiple sub-sections. Caches are never removed from the evaluat ...
Crash when creating a local variable inside of a collapsed node graph that has been copied
UE - Gameplay - Blueprint - Nov 5, 2015If the user creates a function with local variables and then collapses the variables down into a collapsed graph and then duplicates this collapsed graph the variables in the second graph will be gr ...