Unreal Engine Issues
Unreal Engine Issues
Crash in RHIBreadcrumbs during loading of Bundled PSO Cache if capturing an Insights trace on Win64 Development
UE - Rendering Architecture - RHI - Feb 17, 2025When compiling a PSO, RHI Breadcrumbs can be fed a bad FRHIBreadcrumbNode, resulting in reading random memory and crashing during the recursive node iteration. This only happens when tracing. The i ...
Event tick not firing when in an actor component that is added to an actor
UE - Gameplay - Blueprint - Aug 22, 2017When using actor components, if you delete a node, such as event tick and then add it to an actor, even if you modify the component again, such as adding the event tick event back, the component wil ...
[CrashReport] UE4Editor_PropertyEditor!FObjectPropertyNode::GetValueBaseAddress() | FSequencerObjectChangeListener::OnObjectPostEditChange
UE - Anim - Sequencer - Oct 5, 2017This is a common crash that has occurred in 4.17.1 and 4.17.2, there are no immediate records of it occurring previously. Users have not provided any descriptions of their actions when the crash oc ...
"Convert to Blueprint" removes ability to edit component properties
UE - Gameplay - Blueprint - Dec 4, 2018As noted by the user in the linked UDN question, this seems to be a problem with the PointLightComponent property on APointLight not having the VisibleAnywhere property descriptor. Also as noted, th ...
Issue where some colors are missing in some materials created by importing MaterialX files
UE - Editor - Content Pipeline - Import and Export - Apr 1, 2024From user: Comparing UE, Arnold, Vray and MaterialXView that have MaterialX files imported, some materials of UE clearly look different from other renderers. Looking into this issue, we found that ...
Crash Occurs When Importing a .ABC File as Skeletal Mesh Into Project That Already Contains Asset's Materials
OLD - Anim - Jun 8, 2018Editor crashes when importing an .abc file as a skeletal mesh and the assets materials already exist inside the project. -Materials need exist inside project before import -If the .abc file is imp ...
Editor crash when spawning character from template
UE - Gameplay - Components - May 18, 2017Spawning a character using an existing character as a template causes the spawned character to inherit the animation of the original and may lead to a crash. This appears to be unique to character ...
[CrashReport] UE4Editor_Core!FName::GetDisplayNameEntry() [unrealnames.cpp:894]
UE - Rendering Architecture - Materials - Sep 14, 2017This is a somewhat common crash in 4.17.1. This same callstack appeared a few times during 4.11, but then has not been seen until recently. Users have not provided any descriptions of their action ...
Copy / Pasting a Widget creates additional Animatable Property transactions in Undo History
UE - Editor - UI Systems - Aug 28, 2018Copy / Pasting or Duplicating a Widget creates multiple transactions in Undo History. These transactions are labeled "Animatable Property changed.' By default, three Animatable Property changed eve ...
Chaining AutomationTool Commands leads to an endless loop
UE - Foundation - Cpp Tools - Automation Tool - Nov 23, 2022Repro Rate: 3/3 This issue was reproduced in //UE5/Release-5.1 at CL 23058290. This is confirmed to not be a regression since the error also occurs on the previous live version. This is regression ...