Unreal Engine Issues
Unreal Engine Issues
Editor crash when adding to Instanced Static Mesh Component is created/populated at runtime.
Tools - Sep 26, 2017If NewObject is used to create an instanced static mesh component at runtime, populating the component with AddInstance causes the editor to crash. Regression: Yes - repro steps provided did not cr ...
UE4Editor is crashing after user builds lighting
UE - Graphics Features - Lumen - Jul 22, 2020Issue reported by user that they are experiencing consistent crashes in UE4Editor have building lighting. ...
Editor Crashes When Attempting to Maximize Standalone Window While a Startup Movie is Playing
Tools - Jun 2, 2017The editor is crashing when clicking the Maximize button on a standalone window when a startup movie is playing. ...
Crash sometimes occurs when enabling the Gravity tool on part of a Sketchfab object.
TM - Tools - May 4, 2024Current state Triggering Gravity on element from Sketchfab object's tree, may result in crash. For 100% reproduction rate, download 'Rank 3 Police Unit' object and apply Gravity to its element 'Rank ...
Crash upon clearing Sequence Record settings in C++ with the window open
UE - Anim - Sequencer - Feb 10, 2017Resetting the Sequence Record settings in C++ while the Sequence Recorder Window is open causes the editor to crash Regression?: No This also occurs in 4.13 ...
Editor crashes when setting return value pin to object variable in widget blueprint
UE - Gameplay - Blueprint - Apr 9, 2015Editor crashes when attempting to set an object variable to a return value within widget blueprints. Frequency: 2/2 Crashreporter: [Link Removed] ...
Adding a new component to a parent class breaks child Blueprints
UE - Gameplay - Blueprint - Apr 16, 2021See UDN(308147): [Link Removed] ...
Rewind debugger would crash when recording a character using Pose search
UE - Anim - Gameplay - Aug 8, 2025Our character is using the Pose search setup from GameAnimation content example. The architecture of the system is most the same with some new function that account for some input difference and sp ...
Iris - Ensure in MarkObjectDirty when calling multicast from component owned by bOnlyRelevantToOwner actor
UE - Networking - Iris - Sep 24, 2024It seems as though the component is in scope for more than one connection, despite its owner only being relevant to one. Enabling Net.Iris.Filtering.ValidateNobSubObjectInScopeWithFilteredOutRootObj ...
[AI] Destroying an actor while using pooled actors with MassActorSpawnerSubsystem causes a nullptr exception crash
UE - AI - Mass - Mar 19, 2023If an actor that is used in the pooled actor list of UMassActorSpawnerSubsystem is destroyed, it causes a nullptr exception in UMassActorSpawnerSubsystem::SpawnOrRetrieveFromPool. The subsystem atte ...