Unreal Engine Issues
Unreal Engine Issues
Water not rendering in Movie Render Queue
UE - Graphics Tools - Terrain - Water - May 3, 2024It appears that MRQ does not actually add the pass that updates the Water Info Texture in the WaterZone actor. If the Skylight is set to "SLS Captured Scene" and does not capture every frame, then t ...
Missing PSO Precaches in the engine
UE - Rendering - Architecture - RHI - Aug 20, 2025A licensee wanted to report some missing PSO Precaching they found, which they have fixed locally: 1. UCableComponent doesn't implement CollectPSOPrecacheData or call CheckPSOPrecachingAndBoostPri ...
Take Recorder crashes if actor with animation despawns during recording
UE - Anim - Sequencer - Mar 8, 2021Skeletal animations are finalized at the end of recording, and expect the actor to still be around, but actors can despawn during recording leading to a crash. ...
Engine crashes when trying to copy a setter node for a GameplayTag variable from one eventgraph to another eventgraph
UE - Gameplay - Sep 27, 2019When trying to copy a setter node for a GameplayTag variable from one eventgraph to another eventgraph the engine crashes. If the blueprint that is copied into has a GameplayTag variable with the sa ...
Renaming variables in parent blueprint resets values for child blueprints
UE - Gameplay - Blueprint - Oct 23, 2015Renaming a variable in a parent blueprint will reset the value of that variable for any child blueprint based on the parent within the level viewport. ...
Timeline Scaling to 0,0,0 scales past 0 to negative values
UE - Gameplay - Jul 27, 2015Scaling objects via a timeline scales past the intended value when attempting to scale to 0,0,0. Instead of ending at 0,0,0 the scale will be set to an extremely small negative value such as -.0019, ...
Landscape Materials Layers Show "none" but are Still Able to Paint on Landscape
UE - LD & Modeling - Terrain - Landscape - Jun 15, 2015Landscape material layers show "none" after generating weight blended layers in landscape paint mode. The landscape layers are painted as normal but do not show that any layer is assigned. ...
Crash when removing native root component from code after creating a Blueprint class based on the native class.
UE - Gameplay - Blueprint - Jul 27, 2015Crash occurs when removing the native root component from code and then attempting to reopen a Blueprint Class asset that was based on the native parent class. Seems like maybe the 'AttachParent' f ...
bool variables set in code do not auto-update after a hot reload
UE - Gameplay - Blueprint - Apr 6, 2015When a bool variable is defined in code, changing the default value of the variable does not update on a hot reload This is inconsistent with other variables types that update their current value w ...
Crash when Reimporting SpeedTree asset with Billboard Material reset to the default World Grid Material
UE - Editor - Content Pipeline - Import and Export - Feb 7, 2017A crash occurs when reimporting a SpeedTree asset after clearing the material billboard element and setting it to the default world grid material. The licensee reporting the issue mentions to worka ...