Unreal Engine Issues
Unreal Engine Issues
Android: Mali Txxx GPUs Encounter Stretching Geometry When Running with Support GPU Scene Enabled
UE - Platform - Mobile - Nov 27, 2019When attempting to run SunTemple with r.Mobile.SupportGPUScene enabled on some Mali GPUs, the project renders with what looks like pieces of the geometry stretching across the level and bending out ...
Draw debug depth priority oddities
UE - Graphics Features - Feb 18, 2020Came across a few oddities with draw debug. DrawDebugSolidBox ignores the DepthPriority parameter and appears to always draw in World. In the screenshot the sphere is drawn on top of the mesh, the ...
GAMEPLAYATTRIBUTE_REPNOTIFY does not properly propagate OldValue
UE - Gameplay - Dec 10, 2021Associated UDN [Link Removed] We've been having some issues with the replication of attributes. Namely we have an OnRep_ function for an attribute that receives FGameplayAttributeData& OldValue a ...
TBaseBlendedCurve::ConvertToAdditive adds a curve track to an additive when the curve only exists in the base pose
UE - Anim - Runtime - May 29, 2023When we create curves on additive animations, we are creating a curve based on whether the curve exists in either the base or additive pose. This wouldn't be the expected behaviour for a user when ...
High Virtual Texture Sample/Lookup Cost when using a Virtual Texture in a Material Layer Blend
UE - Rendering Architecture - Materials - Mar 14, 2025Some Material Attribute blends in Material Layer Blends can cause Virtual Texture samples to be duplicated in HLSL. This can be avoided by sampling the Virtual Texture in the Parent Material, and pa ...
Property won't be force synced when re-enabling replication.
UE - Networking - Mar 21, 2017It seems like if replication is re-enabled for a given property, its state should be force synced (depending on replication conditions). Otherwise, the state will remain "out of sync" for an indeter ...
The Add node does not update in the Construction Script
UE - Gameplay - Blueprint - Feb 28, 2015The Add node does not update in the Construction Script. Reproduced in 4.7.1 binary and Main (//depot/UE4/Promotable-CL-2455917) ...
Particle record in the Matinee leads to crash when playing after record.
Tools - Oct 19, 2017Particle record feature in the matinee seems not properly working in the Editor. When trying to play in the matinee with recorded keys, the Engine will crash with Access violation - code c0000005. ...
[CrashReport] UE4Editor_Engine!USceneComponent::DestroyComponent() [scenecomponent.cpp:847]
UE - Gameplay - Components - Dec 1, 2017[Edit]: This should no longer be a crash as of 4.19.2 - we should only get ensure() reports with this callstack. ===== This is a common crash coming out of 4.18. Users have not provided any descript ...
Control Rig - Undo doesn't function correctly with proxy and multi bone controls
UE - Anim - Rigging - Control Rig - Oct 26, 2025Issue from my Technical Animator where the undo operation in Control Rig doesn't work as expected on Proxy Controls. He has recreated the issue using the "Control Rig Samples Pack" and recorded a vi ...