Unreal Engine Issues
Unreal Engine Issues
Crash when using Set Collision Response on a Destructible component
UE - Simulation - Physics - Destruction - Dec 20, 2016Crash when using Set Collision Response on a Destructible component. The repro is using the Construction Script but this also happens using Event Begin Play in the Event Graph on play. It crashing ...
Exception Crash When Moving Files
Tools - Apr 8, 2020Moving files to a sub-folder crashes the editor. ...
Crash when creating nested child actors
UE - Gameplay - Blueprint Compiler - Aug 18, 2020Setting the root of the furthest child actor results in a crash after pressing compile on the blueprint. Example project: [Link Removed] ...
Switch on custom enum causes compilation errors after Hot Reload
UE - Foundation - Core - Sep 28, 2015If the project is hot reloaded while a Switch on Enum is inside of a blueprint which is switching on a custom enum, the switch will become corrupted. It changes the 'selection' pin to take a Byte pa ...
"StaticFindFirstObject: Ambiguous object name" on delegates with timelines in packed level actors
UE - World Creation - Worldbuilding Tools - Level Instances - Jan 31, 2024Bone names of ~100 characters or longer crash the editor when baking to control rig
UE - Anim - Rigging - Control Rig - May 15, 2025This is an issue with inconsistencies over rig names and how control names are generated. We expect that a control name will be appended with _CONTROL or _CURVE_CONTROL. But because URigHierarchy: ...
Using a struct to set a button style causes a crash
UE - Gameplay - Blueprint - Mar 17, 2015If a struct is give a button style as one of its variables and then that variable is in turn used to set the button style of a button widget the editor will crash when trying to save ...
Crash after deleting Editor Utility Widget and accessing it from Window menu
Tools - Feb 25, 2019Crash after deleting Editor Utility Widget and accessing from Window menu ...
Editor crash while saving asset during cook operation
UE - Foundation - Data Pipeline - Cooker - Apr 2, 2025It is possible to experience an editor crash in 5.5.4 when the cook process generates a warning that references an asset while the editor is saving. It seems that during a save operation, the code t ...
Moving folder of assets crashes editor
UE - Simulation - Physics - Dec 23, 2015Moving the contents folder for the Dynamic Clocks marketplace asset crashes the editor immediately. Frequency: 5/5 CrashReporter: [Link Removed] ...