Unreal Engine Issues
Unreal Engine Issues
Python function unreal.AssetRegistry.get_assets_by_class is broken
UE - CoreTech - Nov 21, 2022Repro Rate: 3/3 This issue was reproduced in //UE5/Release-5.1 at CL 23058290. This is confirmed to be a regression since the errors do not occur on the previous version and is regression tested o ...
Cable Actor resets to initial end point position when moving the actor while Attach End is disabled
UE - Simulation - Core - Apr 4, 2023This is a regression. Tested in //UE5/Release-5.1 CL23901901 Additionally, I placed the cable actor in a sequencer then keyed several changes in position. The Cable actor had the same behavior of r ...
Performance concerns with control rig component initialization
UE - Anim - Rigging - Control Rig - May 18, 2023Report from a licensee that InitializeControlRigComponent using CR_Frame_Destructible in city sample is taking a lot of frame time. It seems that a lot of time is being spent hashing and also URigV ...
Body Instance property changes made in construction scripts are not applied
UE - Simulation - Core - Jul 17, 20207054614 was submitted to fix an issue with not being able to modify physics properties on instanced blueprints child components. This is related to [Link Removed] ...
World Position Offset Object Shadow Cast on Translucent Object Causes Flickering
UE - Graphics Features - Jan 21, 2025When a WPO (World Position Offset) object casts a shadow on a translucent object, the translucent object flickers continuously as the shadow passes over it. Initially logged as a 5.5/5.5.1 but also ...
Cloth - Assertion failed: SimData->LODIndex != INDEX_NONE && SimData->LODIndex <= LOD when using the rewind debugger with multiple LODs cloth
UE - Simulation - Visual - Feb 19, 2026The LOD switching when the simulation is paused could still be causing problems when the simulation is paused while the LOD indexes are going up because there is no LOD Bias mappings by default. Se ...
Child blueprint reference to self node unpins after close and reopen from Set Array Element node
UE - Gameplay - Blueprint - Jun 1, 2015If a child blueprint attempts to set an array element of self to an array of the parent blueprint, then the editor is saved, closed, reopened, the self pin will disconnect from the Set Array Element ...
Sky Atmosphere Material Nodes not Correctly Represented in the Surface Cache for Nanite Enabled Static Meshes
UE - Graphics Features - Apr 1, 2025When nanite is enabled on a static mesh, lighting contributions from Sky Atmosphere material nodes are not incident on the static mesh and no longer present in the overall lighting of the scene. Th ...
Crash when using AnimSeqStats console command
OLD - Anim - Apr 8, 2015Crash when using AnimSeqStats console command. User in the additional info URL seems to know what the code change should be. [Link Removed] ...
Overridding a function with no return value in a ChildBP produces an event instead of a function
UE - Gameplay - Blueprint - Dec 17, 2015If you have a BP with a function that has no return value, then override that function in a ChildBP, it becomes an event and cannot be used like a normal function ...