Unreal Engine Issues
Unreal Engine Issues
SkeletalMeshActor flickers rapidly when PhysicsAsset contains multiple boxes.
UE - Anim - Synthesis - Apr 12, 2024SkeletalMeshActor using a PhysicsAsset with custom box shapes may flicker rapidly in Editor when not selected, and also flickers in PIE mode. If occlusion culling is disabled the flickering stops. ...
Modifiers do not behave as expected when adding conflicting mappings of different priorities
UE - Gameplay - Input - Apr 11, 2025VALIDATE_UNIFORM_BUFFER_LIFETIME fails compilation
UE - Graphics Features - Jul 24, 2025Also verified on Release-5.5.4 CL 40574608 ...
Deadlock in UAnimationSequencerDataModel::Evaluate where FScopeLock Lock(&EvaluationLock) blocks execution indefinitely
UE - Anim - Nov 4, 2025When both the Sequencer Editor and an Animation Curve Editor are open for the same animation asset, the editor freezes completely upon editing the curve. Analysis indicates that the freeze is caus ...
Distance Field Artifact with Point/Spot Lights with Mesh scaled to 0 on XYZ
UE - Graphics Features - Apr 30, 2015When using a Spot/Point Light with Distance Fields enabled and a mesh that is scaled to 0 on the XYZ will result in artifacts. ...
Pausing simulation in PIE does not pause looped timers on the Server when players is set to more than 1
UE - Networking - Feb 4, 2016Pausing simulation in PIE does not pause looped timers on the Server when players is set to more than 1. The Client pauses the timer as expected. With only one player, timers are paused as expected. ...
Auto Align Floor to Mesh causes floor to align well below the mesh
OLD - Anim - Aug 28, 2015NOTE: This is likely a known issue, but I could not find an existing bug for tracking Auto Align Floor to Mesh causes floor to align well below the mesh. Causes the mesh to float I've tried with ...
"Set Anim Instance Class" broken after using "Play Animation" node
OLD - Anim - Jul 17, 2015After using a "Play Animation", the user cannot set the character back to using an AnimBP via the "Set Anim Instance Class" node. Workaround: Use two "Set Anim Instance Class" nodes. One to set i ...
Scaling multiple child components within a blueprint will cause their transform to malfunction
UE - Gameplay - Blueprint - Feb 17, 2016If the user scales multiple child components and tries to move them it causes exaggerated movement. ...
Inputs and Outputs missing in Details pane on Interface function that has been transferred to local function
UE - Gameplay - Blueprint - Aug 12, 2015After removing an interface from a blueprint, any interface functions in the blueprint can be transferred to a local function. However, after this occurs, the inputs and outputs are removed from the ...