Unreal Engine Issues
Unreal Engine Issues
Material Function Instances do not show up in the Material Function Call node
UE - Rendering Architecture - Materials - Jun 5, 2023This is not a regression. Tested in //UE5/Release-5.1 CL23901901. The Material Function Instance can be dragged and dropped into the Material Function Call. ...
Long thin spinning objects take too long to stop spinning
UE - Simulation - Physics - Solver - Jun 5, 2023See the SpinningObjectStability test map in the Physics Sandbox. [Link Removed] It's not clear if this is a bug or a side effect of some of our solver shortcuts (e.g., omission of the precession te ...
Objects without custom delta properties can return false for CanSkipUpdate with net.PushModelSkipUndirtiedReplication enabled
UE - Networking - Jun 5, 2023This seems to occur after receiving a Nak for certain actors. FObjectReplicator::ReceivedNak will decrement SendingRepState.CustomDeltaChangeIndex even if the object has no custom delta properties. ...
Dormancy validation log warnings when COND_Never property changes
UE - Networking - Jun 2, 2023FRepLayout::DiffProperties doesn't check if the property's conditions is COND_Never or if the Parent Cmd's flags have the ERepParentFlags::IsLifetime flag (which FRepLayout::InitFromClass doesn't se ...
Cable Actor becoming stiff when bound to two dynamic objects
UE - Simulation - Physics - Jun 1, 2023the cable actor does not dynamically deform when the cable actor's parent mesh moves. Instead, the cable actor becomes rigid between the meshes it's bound between. This bug does not occur in the fo ...
Allow Cinematic Control is reset to true when restarting the editor
UE - Editor - Workflow Systems - May 31, 2023When restarting the editor the viewport will have its Allow Cinematic Control flag reset to true. ...
Cooker Generated Packages: Actors can trigger the "load" of generated packages from linker load and load them incorrectly
UE - Foundation - Data Pipeline - Cooker - May 31, 2023Generated packages have to be constructed by the cooker via FGeneratorPackage::CreateGeneratedUPackage. Some fields on the UPackage are set and ICookPackageSplitter->PopulateGeneratedPackage is call ...
Visual Noise on Thin Translucent materials with a Directional Light
UE - Graphics Features - May 30, 2023Regression in testing This occurs with hardware and software ray tracing, as well as moveable and static lights This occurs regardless of anti aliasing. This was tested with DX12 ...
UAnimSequence::ExtractRootMotionFromRange causes problems on skeletons with different root bone ref transforms
UE - Anim - Gameplay - May 29, 2023We should disable this block of code by default, with a config/console var to enable it: // Transform to Component Space const FTransform RootToComponent = RootTransformRefPose.Inverse(); StartTran ...
FTabManager::PersistLayout Ensure Triggered During Docking/Undocking
UE - Editor - Workflow Systems - May 25, 2023An ensure (ensure( !PersistentLayout->PrimaryArea.IsValid() )[Image Removed] is firing in FTabManager::PersistLayout() sometimes when docking/undocking quickly. ...