Unreal Engine Issues
Unreal Engine Issues
Crash when opening a new level while opening Editor Utility Widget after opening and closing it multiple times
Tools - Jun 4, 2019Crash when opening a new level with reopened EditorUtilityWidget after opening and closing it multiple times. The cause of this issue is that UEditorUtilityWidgetBlueprint :: UpdateRespawnListIfNee ...
Editor crash on close if custom Data Asset is not saved after hot reload.
UE - Foundation - Core - Mar 7, 2016After creating an editor asset of a custom DataAsset class, if changes are made to to the class and hot reloaded, the editor will crash on close if the editor asset is not saved after the hot reload ...
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. ...
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 ...
'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 ...
Editor crashes when an Animation Blueprint Template is compiled with 'Layered Blend Per Bone' node
UE - Anim - Runtime - Mar 17, 2022Editor crashes when an Animation Blueprint Template is compiled with 'Layered Blend Per Bone' node. ...
OBJ file causes a `Debug Assertion Failed!` error
UE - Editor - Content Pipeline - Import and Export - Dec 23, 2015When importing this users file of an OBJ asset there will be an assertion failed error. On the import message if you hit "ignore" until the mesh imports all will work in 4.10 or later. This was no ...