Unreal Engine Issues
Unreal Engine Issues
Crash on exit with NULL FTextRenderComponentMIDCache
Suggested fix is to relocate the Super::PreExit() call to the end of UGameEngine::PreExit() so that level streaming can be safely flushed before the MID cache is cleaned up. ...
Spline mesh crashing in FRayTracingDynamicGeometryCollection::AddDynamicMeshBatchForGeometryUpdate
UE - Rendering - Features - Ray Tracing - Jan 31, 2025A crash occurs when using ray tracing with spline meshes preceded by the following ensure : Ensure condition failed: NumCPUVertices <= VertexBufferNumElements File: Engine\Source\Runtime\Renderer\ ...
Add sanitization code surrounding RigidBody + RigidBodyDynamic flags
UE - Simulation - Physics - Jul 20, 2016PhysX throws warnings (which are escalated to errors) when CCD and Kinematic are in invalid states (they can only be enabled exclusively). The code to fix this has already been submitted, but may c ...
RayTracingGeometry.UpdateRHI(); crashes at checkf BuildParams.IsEmpty()
UE - Rendering - Architecture - May 22, 2024When custom RayTracingGeometry is created, a crash is triggered by an assert at: Engine\Source\Runtime\Engine\Private\Rendering\RayTracingGeometryManager.cpp line 252 "Unexpected entries in BuildP ...
Updating to 4.13 from 4.12 Causes Particle System Orientation to Break When Cooked
UE - Graphics Features - Sep 16, 2016When updating a particle system with the mesh data type to 4.13 its orientation will change after being cooked. This issue will not appear with PIE, or Stand alone you must Launch from editor. A 4.1 ...
T_Cobblestone_Rough_N has incorrect Compression Settings
Docs - Samples - Mar 5, 2015T_Cobblestone_Rough_N is incorrectly set to TC_Default not TC_NormalMap ...
Localized Time Zones cause iOS Certs and Provisions to Appear Expired after Creating
UE - Platform - Mobile - Oct 13, 2016Denmark (Other countries) Time causes Certs and Provisions to Appear Expired for anywhere between two and twenty four hours after creating. They can temporarily set their computer's time ahead as a ...
Comment titles do not auto-wrap
UE - Gameplay - Blueprint - May 6, 2016Comment titles do not auto-wrap in the blueprint event graph, which can make reading a commented section of blueprints difficult. Regression (no) issue (does) occur in 4.10.4 ...
Ribbon Emitter Lifetime Parameter Can Only Be Set Once
UE - Graphics Features - Apr 18, 2017You can set the ribbon particle parameter for lifetime only once during runtime. After that setting that parameter has no influence. ...
Cannot navigate through options in combo box
UE - Editor - UI Systems - May 31, 2017Cannot navigate through options in combo box with the default navigation. This appears to be a regression. Working as expected in 4.15.3 No longer working as expected in 4.16 ...