Unreal Engine Issues
Unreal Engine Issues
Visual delay when using Seek in media player blueprint
zComponent - Archive - Nov 29, 2022Reproduced about 6 times from 9 attempts. Regression TBD. ...
World Initialization is performed on Transition World if the client's process is halted at a certain point
UE - Networking - Apr 12, 2016A user reported an issue where, if a client hitches during world transition, the client will continue referring to the transition world instead of the newly created one. This will result in the clie ...
Mesh painting on staticmesh doesn't always apply Colors to All LODs
UE - Editor - Open File Formats - Asset Migration - Apr 18, 2022See the video [Link Removed] ...
Sequence with Override Instance Data enabled and a SubShot will accumulate the TransformOrigin Location wrongly and overshoot the expected end position
zComponent - Archive - Mar 28, 2025A Sequence with Override Instance Data enabled and a SubShot will accumulate the TransformOrigin Location wrongly and overshoot the expected end position. The licensee has encountered a particular s ...
Ensure triggered upon improper math expression
UE - Gameplay - Blueprint - Aug 4, 2016An ensure is triggered upon entering an improper math expression. ...
GameThread + AsyncLoadingThread deadlock - StaticLoadObject vs. StaticAllocateObject
UE - Core - Systems - Feb 14, 2023User reported encountering a deadlock between GameThread and AsyncLoadingThread and provided two callstacks.User quote I've been running into a deadlock intermittently with a custom blueprint conso ...
Creating a new C++ Synth Component results in a failed compile linker error.
UE - Audio - Dec 19, 2019Upon creating a new Synth Component C++ Class in Unreal 4.24, the compiler will fail to compile with a Linker error. ...
Crash in NaniteStreamManager when Nanite data fails to decode corrupt data from DDC
UE - Rendering - Features - Nanite - Sep 11, 2024If Nanite data becomes corrupt in the DDC, the Editor may crash in FStreamingManager::InstallReadyPages() when the Pending.State is FPendingPage::EState::DDC_Ready but the resulting SrcPtr is null b ...
GeometryCollectionPhysicsProxy::FieldParameterUpdateCallback() not removing invalid Commands, leading to performance issues
UE - Runtime - Deformable - Aug 30, 2025GeometryCollectionPhysicsProxy::FieldParameterUpdateCallback() not removing invalid Commands, leading to performance issues. The licensee has provided their analysis: We seem to have stumbled acro ...
Crash when creating a level sequence player after a level begins its tear-down
UE - Anim - Sequencer - May 6, 2020It's possible to create a level sequence player in a level that's being torn down. Event end play is one example, but the original report comes from a situations that's harder to avoid. Creating a l ...