Unreal Engine Issues
Unreal Engine Issues
Temporal Super Sampling flickering temporal analysis visualisation mode indicates temporal analysis disabled for all objects on screen
UE - Graphics Features - Jan 24, 2025This can also be observed while running in PIE mode using the console command "r.TSR.Visualize -2". It is not clear whether it is only the TSR flickering temporal analysis visualization that is exh ...
Ensure when using Ctrl Z to undo painted landscape - UE4Editor_Engine!FPrimitiveSceneProxy::VerifyUsedMaterial() primitivesceneproxy.cpp:599
UE - LD & Modeling - Terrain - Landscape - Feb 9, 2017Note This is a one off crash, that I was not able to reproduce it again. Quickly changing the materials on landscape by painting and undo-ing seems to create this rendering crash ...
Crash when building lighting while in PIE
UE - Graphics Features - Feb 21, 2017NOTE: This issue is similar to (same callstack) as [Link Removed], however this issue is still occurring in 4.15.0. Error Message: Access violation - code c0000005 (first/second chance not availab ...
Ensure in APlayerState::OnRep_bIsInactive may be hit
UE - Networking - Jan 6, 2021The ensure in APlayerState::OnRep_bIsInactive may be hit due to the player state being replicated before the game state. The check is necessary for making sure the game state is available, but the e ...
Provide a way for licensees to set a custom class for DataLayerInstanceWithAsset.
UE - World Creation - Worldbuilding Tools - World Partition - Jul 25, 2023Provide a way for licensees to set a custom class for DataLayerInstanceWithAsset. ...
Enabling For Distribution doesn't set config to Shipping in DefaultGame.ini
UE - Platform - Mobile - Nov 29, 2017After I ran the above steps and then packaged for Windows and iOS (using File > Package in the editor), my resulting executable was Shipping. So far this issue is cosmetic / confusing to the user ...
Scene Depth Buffer corruption with VR on AMD GPUs
UE - Platform - XR - Sep 12, 2018Depth buffer corruption/artifacts when using VR with certain AMD GPUs Tested with Oculus DK2, User reports with Oculus Rift ...
FInstancedStruct and TInstancedStruct in DeveloperSettings only write default values to configuration ini files
UE - AI - May 6, 2025FInstancedStructs, or its TInstancedStruct sibling, can be included in a class that inherits from UDeveloperSettings. UDeveloperSettings will persist data in a configuration file. In the case of FI ...
Material Layers cannot be re-ordered by dragging in the Material Layer Parameters tab
UE - Rendering - Architecture - Materials - Jun 9, 2026Material Layers cannot be re-ordered by dragging in the Material Layer Parameters tab even though there is UI for dragging the rows and the rows appear to be draggable. ...
LIVE: RENDERING: Movable Mesh does not receive shadows from Static meshes in static or stationary lighting
UE - Graphics Features - Apr 30, 2014---------------------------------------------------------------------------------------------------------------------- Build: 4.1.0-2057451 Description: Movable meshes and blueprints set to cast n ...