Unreal Engine Issues
Unreal Engine Issues
Crash on aborting main task of behavior tree's parallel node
UE - AI - Jun 12, 2015It seems that we're getting an intermittent crash when killing a pawn that's executing a parallel node. It's crashing in BehaviourTree.cpp on this code: UpdateInstance.ParallelTasks[ParallelTaskId ...
MDL imported from Substance Source with Datasmith causes a crash
UE - Editor - Content Pipeline - Import and Export - Mar 8, 2019MDL downloaded from Substance Source causes a crash. This is reported on UDN by an Enterprise customer: https://udn.unrealengine.com/questions/487598/why-would-ue4-is-always-crashing-when-import ...
EQS Context modifications Crashes Editor
UE - Gameplay - Aug 29, 2018Making changes to the EQS Context and moving the Testing Pawn, the Editor crashes. When reopening the Editor, the context is set and the query does generate from that actor/location. This issue was ...
UMG causes crash when running as a client on a dedicated server
UE - Editor - UI Systems - Mar 4, 2015If the settings for the multiplayer options are set as follows: Number of players : 1 Run Dedicated Server : True (Checked) Use Single Process: False (Unchecked) Editor Multiplayer Mode: Play As Cl ...
Live: Crash when opening a blueprint who's component was edited in VS
UE - Gameplay - Blueprint - Oct 31, 2014Added functionality to a blueprint component through code and built the project in VS. After a hot reload, I saved the blueprint and closed the editor. Reopening the editor and the blueprint cause ...
Editor Crashes when compiling a 3d widget after adding array variable
UE - Editor - UI Systems - Feb 23, 2015Editor crashes when user adds array variable (any type) to a 3d widget that is used within a blueprint actor and then compiles the widget. Frequency: 4/4 Crash Reporter: [Link Removed] ...
Turning off Apply Wind after switching tabs crashes editor
OLD - Anim - May 27, 2015In the Skeletal Mesh editor, turning Show>Clothing>Apply Wind while switching tabs causes a crash. For example, turn it on while in the Mesh tab. Switch to Animation Tab and then back to Mesh. Turn ...
Sequence with null skeletal track sections crashes on load
UE - Anim - Sequencer - Jan 21, 2021Add contents of the zip file to your 4.26 project. Open the level sequence. EXPECTED: It shoudln't crash. Log will print saying that it removed some animation sections. ...
Crash when using "Convert to Seeded" on a Cascade Module
UE - Graphics Features - May 2, 2016Crash when using "Convert to Seeded" on a Particle System Cascade module This is a Regression as it does not occur in 4.10 Error message: Assertion failed: *Offset < (uint32)InstancePayloadSize [ ...
Crash in PCGComponent during file load for file with vegetation from placement tools
TM - Rendering - Jul 14, 2025Reported in SF [Link Removed] Client has a file that consistently crashes during loading in the PCGComponent.cpp that appears to be linked to placed vegetation. Crash occurs during file open and m ...