Unreal Engine Issues
Unreal Engine Issues
Enabling Substrate causes MaterialGraph node previews to render black
UE - Graphics Features - Substrate - Jul 16, 2025Node previews in MaterialGraph with Substrate enabled render solid black in 5.6. The latest 5.5 engine does render previews correct with substrate enabled. ...
Mover standalone backend allows non-persistent sync structs to carry over between frames
UE - Gameplay - Player Movement - Mover - Jul 16, 2025Only certain sync state structs are intended to persist between frames. These are configured via MoverComponent's PersistentSyncStateDataTypes array. There appears to be a bug in the way the standa ...
[AI] Automatically generated navlinks do not contain the poly flag for being a navlink.
UE - AI - Navigation - Jul 16, 2025Automatically generated navlinks are failing to be detected by FNavMeshNodeFlags::IsNavLink. The area flag assigned to the navlink end points is not including the NavLinkFlag. ...
AddOrUpdateWarpTargetFromComponent behaving incorrectly when using a SceneComponent with non-identity scale
UE - Anim - Gameplay - Jul 15, 2025When using AddOrUpdateWarpTargetFromComponent you can pass in a SceneComponent, Relative Location and Rotation as well as optionally choosing to have the warp target follow the object if it moves.If ...
URuntimeVirtualTextureComponent::RequestPreload not working for some edge cases
UE - Rendering Architecture - Jul 15, 2025A licensee has reached out to us to inform us that the logic for preloading at times fails to account for adaptive virtual textures when the requested mip level is not in the shared AllocatedVirtual ...
Crash in PCGComponent during file load for file with vegetation from placement tools
TM - Rendering - Jul 14, 2025Reported in SF [Link Removed] Client has a file that consistently crashes during loading in the PCGComponent.cpp that appears to be linked to placed vegetation. Crash occurs during file open and m ...
Drag-and-drop any cooked Blueprint class asset into the level viewport crashes the editor
UE - Framework - Blueprint - Jul 14, 2025Dragging any cooked Actor-based Blueprint class asset into the level editor viewport will crash the editor when it has been configured to work with cooked assets. This is a regression that started ...
Interchange framework is bypassed on the second attempt after a failed import
UE - Editor - Content Pipeline - Import and Export - Jul 14, 2025Hello! We have encountered a bug with the Interchange pipeline. When an interchange texture import is cancelled due to non-power of 2, and then the same texture is imported again without any change ...
Console command “showflag.rendering 0” causes crash
UE - Rendering Architecture - Jul 10, 2025A crash occurs when the console command “showflag.rendering 0” is executed. This does not occur in UE5.5, so it is a iassue in UE5.6. ...
Bindless Textures in active use are able to be garbage collected
UE - Rendering Architecture - RHI - Jul 9, 2025It is possible for textures referenced in the bindless texture data assets that are actively used in materials being rendered in the active viewport to be garbage collected. This results in the mat ...