Unreal Engine Issues
Unreal Engine Issues
Automotive Materials - ClearCoat Specular Artifact with Saturation ~1
UE - Graphics Features - Mar 8, 2023[Link Removed][Link Removed] ...
PIE registers 2 Default Brushes in the blank level
Tools - Jul 3, 2017PIE registers 2 Default Brushes in the blank level. It's expected behavior to have 1 Default Brush, which is the case in other play modes, but PIE registers 2. Licensee Description: This is an iss ...
KiteDemo: Bookmark 1 - bird visuals and audio missing
Docs - Samples - May 3, 2017While testing KiteDemo for 4.16 Sample Pass – //UE4/Release-4.16 CL 3420042 in Binary – I found that aside from the incredibly low FPS, some of the Bookmarked camera locations have issues. In the fi ...
Sphere Mask ArgInvHardness missing multiplication
UE - Rendering Architecture - Materials - Jun 27, 2025Hi Epic, In MaterialExpressions.cpp UMaterialExpressionSphereMask::Compile(), hardness is not calculated the same way in both <if> conditions. One is missing a multiplication by 0.01f. Specificall ...
Fbx importer can import valid under 30Hz anim at 30Hz
Tools - Jul 17, 2017The samplerate of a track was compute with the following formula Equation 1: number of Key / animation Time This formula work only if we have animation keys that are time equidistant. example of ...
Crash when changing the number of instances in a grouped sprite component at runtime
UE - Gameplay - Paper2D - Aug 4, 2016A crash occurs when you remove a Sprite Instance within a Paper Grouped Sprite component of an Actor BP on Event Begin Play. I was able to reproduce this crash in the binary releases of 4.11.2 and ...
Example 1.3: Constraint Profiles animation not working in ContentExamples
UE - Content - Content Example - Mar 25, 2022This bug does not occur in //UE5/Release-5.0-EarlyAccess or in Release-4.27 making it a regression. This also occurs in //UE5/Main ...
ChaosCacheManager is not recording the Observed GeometryCollections NotifyBreak states between level loading and will default to false if changed from Record to Play
UE - Simulation - Physics - Mar 28, 2025ChaosCacheManager (CCM) is not recording the Observed GeometryCollections (GC) NotifyBreak states between level loading and will default to false if changed from Record to Play. AChaosCacheManager ...
Unable to Edit Curve Names between 2 Different Animsets (if name of curve is the same)
OLD - Anim - Aug 13, 2015If you create 3 curves in AnimSequence A and name them 1, 2 and 3 respectively, then create 3 curves in AnimSequence B and name them 4,5 and 6 respectively... In AnimSequence B you will not be able ...
Crash after converting to 4.7.0 from 4.6.1
UE - Gameplay - Blueprint - Feb 26, 2015User is crashing when opening project after converting to 4.7. [Link Removed] [Link Removed] LOG IS ATTACHED 4.6 project with updated plugin: [Link Removed] ...