Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor_MeshPaint!FBaseMeshPaintGeometryAdapter::GetVertexPosition() [basemeshpaintgeometryadapter.cpp:70]
UE - Simulation - Physics - Character - Nov 2, 2017This is a trending crash coming out of 4.18, and may be a regression. Users have not provided any descriptions of their actions when the crash occurred. Source Context 57 const TArray<FVec ...
Sequencer causes 3DWidget on BP vectors to snap to Actor when active
UE - Anim - Sequencer - Nov 15, 2025When we have Vectors in BP with Show 3D Widget enabled, the Transform Widget would always snap back to the Actor after we move the 3D Widget in-world. [Link Removed] Removing the _DaySequenceActor ...
Buffer Visualization Overview is affected by EV
UE - Graphics Features - Mar 5, 2020EV -0.5 [Image Removed] EV 0.0 [Image Removed] ...
Crash on garbage collection - Encountered 20 object(s) breaking GC Clusters assumptions.
UE - Foundation - Core - Aug 15, 2018Garbage collection crash during opening cinematic. Note after crashing and relaunching the game the saved file appears as 8% complete instead of 0%. Note this crash is also occurring with //UE4/D ...
Crash when removing and re-adding instances to an InstancedStaticMeshComponent with PerInstanceCustomData.
UE - World Creation - Worldbuilding Tools - Jan 22, 2026When using an InstancedStaticMeshComponent with PerInstanceCustomData, the number of float elements in the "Custom Data" array should always be equal to NumCustomDataFloats multiplied by the number ...
Mac editor mobile preview crash with MSAA on
UE - Platform - Mobile - Mar 1, 2021setting GSupportsTimestampRenderQueries=false or r.GPUStatsEnabled=0 can fix it ...
Constant Crashes on OS X 10.10.1
UE - Platform - Apple - Dec 15, 2014User (Omri) on Mac running OS X 10.10.1. on MacBook Pro (17-inch, Early 2009 Experiencing Crash. Cannot reproduce. Crash Reporter: N/A Callstack: MachineId:1E07B9CE2F4554A7C3F421A9DD97AFB5 EpicAc ...
Sometimes CharacterMovement stops at very low steps (quite lower than Max Step Height).
UE - Gameplay - Player Movement - Jul 11, 2016Sometimes CharacterMovement stops at very low steps (quite lower than Max Step Height). Capsule radius of Character is 50cm, Max Step Height is 45cm, step heights is around 10~30cm, MaxWalkSpeed is ...
Import FBX Camera with 90 degree rotation
UE - Anim - Sequencer - Aug 15, 2016The FBX Import into Sequencer currently assumes that the camera has a rotation axis of 0, -90, 0. This assumption shouldn't be there. For example, currently this works: 1) From Sequencer, export a ...
Warnings after Launching onto Mobile
UE - Platform - Mobile - Oct 27, 2016Launching onto android causes 1-3 warnings in the output log. I ensured that the mobile device was connected to Epic-Secure. LogTcpMessaging:Warning: Discovered node '00529FEE320A011C0032002F8B3E2F4 ...