Unreal Engine Issues
Unreal Engine Issues
UAnimInstance::GetInstanceTransitionTimeElapsed returning 0 in non-editor builds
OLD - Anim - Sep 4, 2019In non-editor builds UAnimInstance::GetInstanceTransitionTimeElapsed always returns 0.0f. This is caused within FAnimNode_StateMachine::Update_AnyThread due to: #if WITH_EDITORONLY_DATA NewTra ...
Project no longer builds when .cc file is included in the project
UE - Foundation - Cpp Tools - Jan 15, 2019Including files with a .cc extension instead of .cpp in a code project used to build fine in Visual Studio. This is no longer the case in 4.21.2. The error message that results indicates that only C ...
Non-Local Players Cannot Hear Opponents Footsteps in Shooter Game
Docs - Samples - Dec 31, 2015Non local players cannot hear opponents footsteps and other various notifies, however, other sounds such as gunfire, etc. are present. Regression: User reports this issue is not present in the 4.8 ...
Instanced Static Meshes Incorrect Normals when Scaled Non-Uniformly
UE - World Creation - Worldbuilding Tools - Foliage - Apr 2, 2015When comparing the World Normals of an Instanced Static Mesh being scaled non-uniformly to that of a regular Static Mesh, their normals do not match one another. I have attempted to look over the d ...
Crash on setting Max. Texture Size with Non Power of 2 Texture
Tools - Mar 16, 2015Also Reproduced in Main Promotable-CL-2479729 After importing and saving a texture which is non power of 2 and not an hdr texture, when you set the Maximum Texture Size in the Texture Editor's Comp ...
Lumen Card Sharing is active on material with custom primitive data
UE - Rendering - Graphics Features - Lumen - Aug 13, 2025The wrong emissive value may be used on Nanite objects with custom primitive data when Lumen card sharing is enabled. This issue can be mitigated with: r.LumenScene.SurfaceCache.AllowCardSharing 0 ...
Non instanced subobject gets set to none after compiling editor
UE - Gameplay - Components - Apr 2, 2021Non Instanced Subobject sets to none after compiling the blueprint. Please see attached video for more details. Checking regression in 4.26 now ...
FBX imports non-sequentially named Skinxx id's will not import all material elements
UE - Editor - Content Pipeline - Import and Export - Jan 25, 2016When importing an asset that is using the naming convention for SkinXX to order material elements does not work properly when the elements are not sequential. Any material that is not in sequential ...
Setting location of Child Actor inside of OnConstruct causes the ChildActor to leave behind non-referenced instances
UE - Gameplay - Feb 10, 2016If the ChildActorComponent on a mesh is attached to a component and then has its location set in the OnConstruct function, it'll leave behind non-referenced instances of itself. This is most apparen ...
Rhino - Tessellation - 'Crack Free Displacement' not compatible with meshes
OLD - Enterprise - Nov 22, 2019Meshes imported from rhino are not compatible with 'Crack Free Displacement' ...