Unreal Engine Issues
Unreal Engine Issues
Animation Track in Shot Does Not Animate With Evaluate Sub Sequences In Isolation Enabled
UE - Anim - Sequencer - May 15, 2018When Evaluate Sub Sequences in Isolation is enabled in a shot, other shots inside the same sequences only play the transform track and do not play their animation track Does not affect 4.18.3 Relat ...
Disabling "Apply Fogging" Doesn't Work for Translucent Material with Volumetric Fog
UE - Graphics Features - Jul 6, 2018Translucent materials with "Apply fogging" disabled will be affected by volumetric fog. Found in 4.19 CL# 4033788, 4.20 Preview 5 CL# 4173640, and 4.21 ...
Default Values missing from Local Variables in Blueprint Actor Construction Script
UE - Gameplay - Sep 19, 2019Specific to the Blueprint Construction Script, Local Variables cannot have their value set in the Editor, because the "Default Value" section of the Details tab will never appear. This only affects ...
DX12/SM6 Sampler Counts increased for empty materials between 5.1 and 5.2
UE - Rendering Architecture - Materials - May 19, 2023While not a major issue in and of itself, this can cause considerable headaches for materials where sampler counts in 5.1 were at 15/16 or 16/16 and when upgrading to 5.2 are now exceeding the built ...
Missing materials on the rear lights of library vehicles
TM - Content - Oct 24, 2025Reported in SF [Link Removed] The rear light material on Twinmotion library vehicles is not present on many vehicles in TM 2025.2. Confirmed affected vehicles are in the following categoriesCarsTw ...
Crash Occurs on Exiting Standalone After Using DemoPlay
UE - Networking - Mar 2, 2017Using Execute Console Command nodes to record and play back a demo is causing a crash in standalone. Using the console commands themselves does not seem to cause the same crash to occur. ...
Crash when changing the World Grid Material to Unlit
UE - Graphics Features - Mar 13, 2017A crash occurs when setting the WorldGridMaterial from the Engine Content to the Unlit Shading Model and pressing apply. ...
HLOD build crashes when GroupActor is present
UE - World Creation - Worldbuilding Tools - HLOD - May 24, 2022The licensee shared information that a Null check on the following Actor can be used as a workaround. static TArray<UActorComponent*> GatherHLODRelevantComponents(const TArray<AActor*>& InSourceAct ...
Editor crash opening level with instance blueprint component
UE - Gameplay - Blueprint - Feb 20, 2017When an actor has an instanced blueprint property, the order in which the map's imports are being verified when loading can cause the editor to crash. For example, trying to load an instanced bluep ...
VR Editor Taking Input From Wrong Controller in Foliage Painting.
UE - Editor - Workflow Systems - Nov 2, 2016When in Foliage Painting mode, the left trigger press causes the right controller to paint foliage instead of the left controller. This bug does not affect Landscaping or Mesh Painting. This is a r ...