Unreal Engine Issues
Unreal Engine Issues
Crash when using StaticDuplicateObject with mismathced Source and Destination class types
UE - Core - Systems - Jun 19, 2025Starting in Unreal Engine 5.4, StaticDuplicateObject internally switched to using Unversioned Property Serialization (UPS) for performance reasons. However, UPS assumes the source and destination ob ...
Landscape Splines in Partially Loaded World Partition Levels Can Cause Nanite Landscape Invalidation
UE - Graphics Tools - Terrain - Nov 7, 2025Certain placements of landscape splines in world partition levels can cause Nanite landscape proxies to invalidate, and switch back to their non-nanite version. This happens when specific regions of ...
Landscape component's LODBias settings is ineffective
UE - Graphics Tools - Terrain - Landscape - Jan 7, 2025[Image Removed] Jira Bot attaches conversation thread from Slack [Image Removed]Ryan Bickell – 2025-01-07 10:54:10 UTC Hello and happy new year! I'm messing with the Landscape component LODBias sett ...
Components stop reporting overlap after a certain amount of actors are attached
UE - Simulation - Physics - Jun 5, 2017Components stop reporting overlap after a certain amount of actors are attached Warning Trying to simulate physics on ''/Game/UEDPIE_0_Level1.Level1:PersistentLevel.Cube7.StaticMeshComponent0'' but ...
Chained physics constraints do not work correctly when one constraint is limited
UE - Simulation - Physics - Aug 12, 2017A chain of physics constraints that includes a physics constraint that is set to Limited does not work correctly. When collision occurs, the attached actors start moving erratically. Regression?: N ...
Crash upon attempting to compile a blueprint while Git source control is active
If a user connects to source control through the Git plugin and creates a repository, when they try to compile a blueprint, they can sometimes crash ...
ChaosCacheManager is not reproducing Trailing Events
UE - Runtime - Simulation - Mar 28, 2025ChaosCacheManager (CCM) is not reproducing Trailing Events. Particles set to track Trailing Events correctly follow the position of the trailing event when the Geometry Collection (GC) is physically ...
[CrashReport] Crash related to launching Tutorials - UE4Editor_Core!FText::FText()
Tools - Jul 5, 2017This is a common crash occurring in the 4.16.2 release. Records indicate this has also occurred in 4.16.0 and 4.16.1, but with less apparent frequency. User DescriptionsJust downloaded, clicking ...
Custom iOS icons don't appear on device for Windows BP projects (Binary Build)
UE - Platform - Mobile - May 4, 2018iOS icons have stopped working for Windows BP projects again; this does not occur on Mac. It also does not occur when using a source build from p4 (only on a binary build from the launcher). Note t ...
Using a 'Format Text' node to set a 'Text Render' component will crash on map load after project conversion
UE - Gameplay - Blueprint - Apr 19, 2016Using a 'Format Text' node to set a 'Text Render' component will crash on map load after project conversion[EUS] TJ Ballard - Opened the map on a users project from this AnswerHub post: https://answ ...