Unreal Engine Issues
Unreal Engine Issues
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 ...
Sequencer Crash when Hovering over Binding Properties on a Component with Spaces in its Name
UE - Anim - Sequencer - Nov 7, 2025Crash when binding to new components that have spaces in their name and you attempt to access their bindings. ...
Animation Constraint Jitter in Sequence when Constraining Layered Control Rig node
UE - Anim - Anim in Engine - Nov 6, 2025When using constraints with layered control rigs, you get jitter on the constrained object. ...
Rotator visual helper appears in local Presentation exports
TM - Tools - Nov 6, 2025Reported in SF [Link Removed] The Rotator animator's visual helpers will be visible in locally exported Presentations when it should be hidden. This does not affect the Translator animator. ...
TSparseArray NatVis visualizer doesn't work for arrays that use TInlineSparseArrayAllocator
UE - Foundation - Cpp Tools - Nov 6, 2025The NatVis visualizer allows many custom Unreal types to be displayed in a helpful manner inside the Visual Studio watch window. One such type is TSparseArray. Under normal circumstances, visualizin ...
[AI] StateTreePropertyRef does not have option for Promote to Parameter
UE - AI - StateTree - Nov 5, 2025I got a report from one of my designers that since we took 5.6, they have been unable to see the "Promote to Parameter" options when attempting to bind an output from one of our common tasks. I took ...
Cloud materials not loaded in local Presentations
TM - Core - Nov 5, 2025Reported in SF [Link Removed] Locally exported Presentations may show some downloadable Twinmotion library materials with the placeholder material when the Presentation is opened. This only occurs ...
net.ReplicateCustomDeltaPropertiesInRepIndexOrder is not respect the cvar for the custom properties
UE - Networking - Nov 5, 2025In our project do not use iris and we use a subclass UExtendAbilitySystemComponent derived from UAbilitySystemComponent. In this subclass, there is a FastArray member variable named ExtendActivatabl ...
GAS: FActiveGameplayCueContainer::RemoveCue crash while iterating removals when consecutive Cue tags are conditionally added and the conditional effects removed in ascending order
UE - Gameplay - Gameplay Ability System - Nov 4, 2025When removing gameplay effects by tag, if the tag that is being removed has other tags that are dependent on it in a cyclical way an "array out of bounds ' error can be triggered. ...
[AI] Gaps between Nav Mesh tiles in World Partition map causing movement issues
UE - AI - Navigation - Nov 4, 2025Navmesh has seams between some tiles that are actual edges rather than previously found "gaps" where it was a debug rendering issue. Pathfinding does fail between these tiles to go straight across. ...