Unreal Engine Issues
Unreal Engine Issues
Disabling Disregard for GC with an invalid asset in GameplayTagTableList causes a controlled crash
UE - CoreTech - UObject - Jul 31, 2024Disabling Disregard for GC leads to a crash in GarbageCollectionVerification.cpp VerifyObjectFlags. This crash occurs when there is an invalid path specified in GameplayTagTableList. The cause of t ...
5.4, FRHIMemoryPool leaks memory
UE - Rendering Architecture - RHI - Feb 12, 2025FRHIMemoryPool will leak data when it is destroyed. "FRHIMemoryPool::Init()" will create "FRHIMemoryPool::DesiredAllocationPoolSize" new "FRHIPoolAllocationData" objects, stored in "FRHIMemoryPool: ...
Downsampled SceneColour textures are not invalidated after ComposeToNewSceneColor when TSR is enabled leading to AfterMotionBlur materials not rendering bloom
UE - Graphics Features - Sep 11, 2025When an emissive AfterMotionBlur material is used with TSR, Bloom is not applied to the material. The cause for this appears to be that AfterMotionBlur materials are composed to a separate texture ...
Opening a data table based on a struct with a slate brush variable crashes the editor
UE - Editor - UI Systems - Slate - Feb 1, 2016Attempting to open a data table based on a struct with a slate brush variable crashes the editor. Frequency: 2/2 CrashReporter: N/A ...
Import options broken when importing bones-only fbx animation
OLD - Anim - Jun 19, 2015This bug is being entered for integration purposes. This is already fixed in 4.9 Main with one of Lina's changes (CL:2584657). Wanted to try and get this into a 4.8 hotfix ...
Correct Morph Targets animate in PIE, but not in Standalone Game
OLD - Anim - Mar 5, 2015Wrong morph targets are animating in standalone game, but the right ones play in PIE See the Additional Info URL for the user's description (and youtube video) Here is the project: [Link Removed] ...
BSP brushes break when non-standard subtractive bsp brushes are used
UE - LD & Modeling - Modeling Tools - BSP - Mar 19, 2015if a nonstandard bsp brush is used as a subtractive brush, additive bsp brushes will break and show incorrect holes when in contact with the subtractive bsp. ...
Rotating terrain with heightmap causes black splotches on terrain
UE - LD & Modeling - Terrain - Landscape - Jan 26, 2015Rotating a landscape with a heightmap causes lightmass to break, rendering black splotches across terrain after building lighting. ...
Behavior tree subtree switch reported as hitching
UE - AI - Apr 4, 2016Setup described in UDN post: parent tree: root - selector - run behavior task subtree: root - sequence - custom BP task with just print string repro: print string message (engine tick) is showing u ...
Editor crashes when attempting to press tab while editing transform values in structs
Tools - Dec 23, 2014Editor crashes if a user presses tab while editing transform values in a blueprint struct. Note: This only occurs while editing transform variables, no other var causes this crash. Logs and Dump f ...