Unreal Engine Issues
Unreal Engine Issues
Fracture Mode > "Remove-On-Break" setting: Cluster Crumbling causes flickering
UE - Simulation - Physics - Destruction - May 10, 2025Fracture Mode > "Remove-On-Break" setting: Cluster Crumbling causes flickering. Once the Remove-On-Break Cluster Crumbling effect is activated, there is a small delay between the disappearance of th ...
Editor crash on level load when bUseActorFolders is true after dragging Actor into another folder in the Outliner
UE - World Creation - Worldbuilding Tools - OFPA - Mar 7, 2023From licensee: Hello! Our level streaming setup enables the bUseActorFolders on our levels. When moving the Actor into another folder via the Outline, the editor will crash on the next load Assert ...
[CrashReport] UE4Editor_Engine!FBlueprintDebugData::FindBreakpointInjectionSites() [blueprintgeneratedclass.h:382]
UE - Gameplay - Blueprint - Aug 29, 2017This is a common and longstanding crash that has occurred since at least 4.9 and affected over 280 users. User DescriptionsI added an item to a BP struct. Last time I did this (several months ago) ...
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 ...
Only 2 out of 4 Split Screen characters appear in TM-SplitScreen
UE - Gameplay - Oct 3, 2016Only two characters appear in the playing field after hitting PIE. There are 4 separate screens, which I expected there being one character for each screen. 4 Characters used to spawn and now only 2 ...
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 ...
Crash occur when switching the Ray Tracing shadow function when only shadow is enabled in the Ray Tracing
UE - Graphics Features - Lumen - Sep 16, 2020According to the licensee, this problem is caused by a variable inconsistency in Cvar. The cause seems to be the difference between the CVar reference when generating RayTracingSceneRHI and the CVa ...