Unreal Engine Issues
Unreal Engine Issues
Static meshes with auto-generated LODs can no longer share lightmaps between LODs
UE - Graphics Features - Feb 21, 2017User report: With 4.15 using only auto generated LOD's static mesh LOD levels can't share computed lightmaps anymore. This cause severe memory increase and it's making lightmass build times way slow ...
Re-Importing a Static Mesh Removes All Sockets
Tools - Mar 9, 2017Re-importing a static mesh results in all currently applied sockets being removed from the static mesh in the Editor. Workaround: Setting the sockets up in the Native 3D editing software followin ...
Output Pins Not deleting on DoOnce MultiInput
UE - Gameplay - Blueprint - Apr 13, 2017When using the DoOnce MultiInput node in blueprints, deleting a newly added pin on the input side will not delete its corresponding output pin. Adding a new pin after that will create the result lik ...
References stored in deleted UProperties stick around in a Blueprint Class
UE - Gameplay - Blueprint - Apr 25, 2017If a UProperty that stores a reference to an asset is deleted, the reference to that asset lingers in any Blueprints that had a reference stored in that UProperty. This can lead to issues when the r ...
CCD can produce incorrect results at low frame rates
UE - Simulation - Physics - Feb 27, 2019The attached project has a fixed frame rate of 30fps with a simulating CCD cube above a with a full restitution floor. The cube has an odd rotation, such that it impacts the floor at a single point ...
Undo and ConstructionScript break the AttachChildren array
UE - Gameplay - Components - Nov 14, 2019Undo fills AttachChildren array with null by the undo serializer. After that, a construction script tries to remove child components from parent component's AttachChildren but it can't find its poi ...
Planar Reflection with Exponential Height Fog flickers on iOS
UE - Platform - Mobile - Oct 28, 2016Planar Reflections have noticeable gaps in the reflection of the exponential height fog for the scene that will flicker as the camera moves. Attached ipa link and test project. [Link Removed] Te ...
Ambient Cubemap Assignment in Post Process Volume does not work with Forward Renderer
UE - Graphics Features - Nov 8, 2016The Ambient Cubemap assignment in a Post Process Volume doesn't work when using the Forward Renderer. I want to note that Cubemap assignment in the Skylight does work. I checked this just to make s ...
Actor Components Tick Automatically with Auto Activate Set to False
UE - Gameplay - Oct 17, 2016Actor Components with Auto Activate set to false are still ticking. If you activate the component on begin play, set a short delay, and then deactivate it, the ticking will stop, which is inconsis ...
Alembic import axis not aligned correctly
UE - Gameplay - Sep 2, 2016Alembic import transform is flipped on the Y axis and the scale is also rotated for its axis. I've attached a text asset similar to the users to easily identify the issue along with the source Max ...