Unreal Engine Issues
Unreal Engine Issues
Building lighting after map data is built dirties level
UE - Graphics Features - Oct 5, 2017There is an issue occurring where after the map built data is made building lighting on a level causes the level to become dirty. this occurs even if anything in the level has not been changed excep ...
[SolidWorks] Complex assemblies will not import correctly
UE - Editor - Content Pipeline - Datasmith - Importer - Aug 25, 2018Using Solidworks 2017 Service pack 4.1 the sldasm files only partially import. Instances, folders, and suppressed parts also mess up the import. Suppressed parts show up from different configuration ...
Push based fast array with net.PushModelSkipUndirtiedFastArrays not replicating across multiple PIE sessions
UE - Networking - Sep 19, 2022The conditions for this bug are fairly specific. The actor must be statically placed, with its only replicated property being the fast array, and net.PushModelSkipUndirtiedFastArrays must be enabled ...
Camera Shake can apply a new post process material every tick when post process material has "Is Blendable" disabled
UE - Anim - Sequencer - Mar 26, 2024In the repro project the player camera has a post process material that slightly darkens the frame by subtracting 0.01 from the final color. When a camera animation based on a camera sequence is pla ...
Bundled compute PSO compilation stalling tender thread
UE - Rendering Architecture - RHI - Feb 13, 2025EA Motive has pointed out a potential bug they found related task graph synchronization and when compiling compute PSOs: [Link Removed]. From the screenshot they sent over, it seems that a task grap ...
Crash When Adding a second animation timeline after adding keys to the first
UE - Anim - Sequencer - Nov 16, 2015If the user adds a second time line to a widget blueprint after the first has had a key frame add then the editor will crash if the curve editor is selected. ...
Crash reparenting actor component to InstancedStaticMeshComponent
UE - Gameplay - Blueprint - Sep 14, 2016Reparenting an actor component to an instanced static mesh component causes a crash. Found on //UE4/Dev-Blueprints CL-3122712 ...
Crash right-clicking in anim blueprint asset picker
OLD - Anim - Mar 10, 2017Editor crashes when right-clicking in the blank area of the anim blueprint asset picker ...
Editor Crash on Mac after creating blueprint structure
UE - Gameplay - Blueprint - May 10, 2017Creating a blueprint structure in the content browser causes the editor to lock up and become unresponsive. ...
CLONE - Editor Crash on Mac after creating blueprint structure
UE - Gameplay - Blueprint - May 19, 2017Creating a blueprint structure in the content browser causes the editor to lock up and become unresponsive. ...