Unreal Engine Issues
Unreal Engine Issues
Startup Movies in Lyra Flicker and trigger ensure: "Only one system can use the SlateThread at the same time. GetMoviePlayer is not compatible with PreLoadScreen."
UE - Media Framework - Dec 20, 2023When adding startup movies to Lyra, the movie playback flickers and an ensure conditions fails with the message: Ensure condition failed: bSuccess [File:D:\build\++UE5\Sync\Engine\Source\Runtime\M ...
Mover character flickers downward while crouched and moving every so often
UE - Gameplay - Player Movement - Mover - May 8, 2025Repro Rate 5/5 Packaged onWindows - 10 - Enterprise - L3864 Processor: AMD Ryzen Threadripper PRO 3975WX 32-Cores 3.50 GHz RAM: 128 GB GPU: NVIDIA GeForce RTX 3080 GPU Driver Version: 572.83 ...
Collision for bsp stays in level after bsp is deleted
UE - LD & Modeling - Modeling Tools - BSP - Jun 30, 2015If a bsp brush is deleted from a level, the level has geometry built, and the user presses play then uses the "show collision" console command, the collision for the bsp wlil still appear. This does ...
Translucency area has stripe-style issue on TSR
UE - Graphics Features - Mar 28, 2024The TSR History Rejection buffer develops a grid-like artifact over translucent, camera-facingplanes. This problem can be mitigated by increasing r.TSR.ShadingRejection.TileOverscan from 3 to 4 with ...
Move 'Scale is not valid' warning to MessageLog to make it more noticeable.
UE - Foundation - Core - Aug 30, 2016Memory leak when comparing scale value with 0 on transform. It appears that the memory used by the editor increases by 25-50 mbs while comparing the scale to 0. Regression (no) issue (does) occur ...
Outline artefact on cascade shadow transition
UE - Graphics Features - Mar 28, 2024Some pixels at the edge between cascaded shadow maps and distance field shadows can be skipped by both, leading to unshadowed pixels. Licensee reports the bug happening in 5.3 as well. Test project ...
Changes in Blueprint Properties not Updated in placed Instance
UE - Gameplay - Blueprint - May 16, 2016When changing some properties in a Blueprint, the changes are not reflected in placed instances of the Blueprint. I've included repro steps from the licensee who reported this. I verified these step ...
Blueprint Nodes no longer Grid Snap to straight lines
UE - Framework - Blueprint - Feb 13, 20235.0:[Link Removed] 5.3:[Link Removed] Attached is a video of the two screenshots overlaid and lined up by their top edges. It appears that the Begin Play node (and others?) have more padding now, w ...
Creating Destructible with PhysXLabs and Fracture Tool in UE4 yield different results and same settings
UE - Simulation - Physics - Destruction - Feb 25, 2015When creating fracturing a mesh in PhysXLabs vs UE4 fracture tool with both using Voronoi fracture and set to 25 chunks will give different results. The mesh (Attached below along with reference i ...
OnComponentBeginOverlap and EndOverlap are called multiple times when moving in a Skeletal Mesh component's collision
UE - Simulation - Physics - Jul 7, 2015OnComponentBeginOverlap and EndOverlap are called multiple times when moving in a Skeletal Mesh component's collision. This does not occur with a Static Mesh's collision. Test project available her ...