Unreal Engine Issues
Unreal Engine Issues
Soft Raytracing Shadows are flickering
UE - Graphics Features - Ray Tracing - Feb 18, 2025[Image Removed][Link Removed] ...
Nanite TwoSidedSign is backwards
UE - Graphics Features - Nanite - Apr 10, 2025The value of MaterialExpressionTwoSidedSign is flipped when calculating the Opacity Mask for Nanite meshes. This seems to be a regression in 5.5. ...
Replication default setting of child blueprint resets if parent is compiled
UE - Gameplay - Blueprint - Jul 20, 2015The setting for Replication on a Blueprint variable resets to None of the Blueprint's parent BP is compiled. ...
Interface cannot be re-implemented after removal from blueprint
UE - Gameplay - Blueprint - Sep 1, 2015If an interface is removed from a blueprint and an interface function is transferred to a local function, the interface cannot be re-implemented in the blueprint. ...
nonstandard bsp additive brushes cause breaking/artifacting on other bsp brushes when colliding
UE - LD & Modeling - Modeling Tools - BSP - May 14, 2015if a nonstandard additive bsp brush collides with a standard additive bsp brush, the surfaces of the bsps break and artifact, causing numerous holes in the brushes. ...
Editor crashes when attempting to open a new level from a level that has an external curve in a timeline within the level blueprint
UE - Gameplay - Blueprint - Oct 27, 2014The editor crashes when a user imports a float curve into a timeline within the level blueprint then attempts to open another level. ...
UMG widgets aren't cleared when levels are swapped via 'open LevelName'.
UE - Editor - UI Systems - Oct 30, 2014If a level has UMG widgets, swapping to other levels (including the level you're already on) doesn't clear away the UMG widgets. ...
AddProceduralMeshComponent node throws UnknownTemplateReferenced errors in duplicated Function
UE - Gameplay - Blueprint - Aug 5, 2015AddProceduralMeshComponent node throws UnknownTemplateReferenced errors in duplicated Function User description: 1) Make a function that has a Add Procedural Mesh Component node. 2) duplicate func ...
Construction Script fires multiple times when the Const Script is compiled
UE - Gameplay - Blueprint - Apr 30, 2015Construction Script fires multiple times when the Const Script is compiled. If the character is moved on the grid in the level, it will only fire once. It only seems to be an issue on bp compile. ...
Memory leak after exiting PIE
There appears to be a memory leak when you PIE and then exit PIE. Users are reporting that each time they PIE, their RAM usage jumps up, say, 10MB, then when you exit PIE, it only drops down 5MB. ...