Unreal Engine Issues
Unreal Engine Issues
Objects animated in Sequencer fail to trigger collisions against stationary characters with character movement components
UE - Gameplay - Player Movement - Oct 22, 2024When an object, such as a cube, is animated in sequencer and that object's path intersects a stationary character with a character movement component, the object will pass through the character with ...
Datasmith - Lights imported with incorrect transforms
TM - Interoperability - May 6, 2025Reported in SF [Link Removed] In Twinmotion 2025.1.1, lights imported through Datasmith appear with incorrect transforms. Lights will appear rotated 90 degrees about the Y axis with an offset. Test ...
Opening blueprints causes editor to crash
UE - Graphics Features - Apr 1, 2015Opening any files in folders (attached) cause editor to crash. Crash Reporter: [Link Removed] Frequency: 10/10 In user's project (available if needed), opening the project immediately crashes ...
Allow promote to variable on Color structs/Vertex Colors structs for Procedural Mesh components
UE - Gameplay - Oct 13, 2015Issue: Currently, it is not possible to make a variable of type "Color" specifically for the color struct on procedural mesh components (see image attached). This is the only variable on procedura ...
Layered destructible meshes do not simulate correctly
UE - Simulation - Physics - Destruction - Aug 10, 2015Layered destructible meshes do not simulate in the same way between UE4 and PhysX Lab. The observed issues are: 1) After first fracture no more damage is applied 2) Areas seem to react differently ...
Separate Translucency for Particles Breaks when Scene Color is used
UE - Graphics Features - May 12, 2015When using Scene Color in a Particle System's Material with Separate Translucency checked true, all Particles with Separate Translucency checked true placed in the level with the Scene Color Particl ...
Motion Blur creates dark artifacts on bottom of screen in editor
UE - Graphics Features - Aug 15, 2016When motion blur is active and the view port is in motion there will be a dark artifact visible at the bottom of the screen. Normally this isn't very noticeable however the effect worsens with speed ...
[CrashReport] AppleIntelBDWGraphicsGLDriver!USC::CPassSsaAllocatorContext::RollbackSpillFillToCopies()
UE - Platform - Apple - Sep 2, 2016Error message: SEGV_MAPERR at 0x3a Source Context: Most recent user affected CL: 3106830 (4.13.0) Logs: [Link Removed] [Link Removed] [Link Removed] CrashReporter User Descriptions:UE4.13 immed ...
Engine crash when Scene Capture Component 2D is added to viewport with forward rendering
UE - Graphics Features - Nov 26, 2016If forward shading is enabled and shadows are disabled, adding an actor with a SceneCaptureComponent2D and static mesh to the viewport will cause the editor to crash. Regression: Yes - this crash o ...
Actor Position Node Returns Parent Position Not Actor With Material Applied
UE - Graphics Features - Feb 9, 2017The actor position node normally returns the position of the actor with with material applied in world space. As of 4.14 it will return the parent's position rather than the child actor's position t ...