Unreal Engine Issues
Unreal Engine Issues
Directional light triggers 'too many overlapping lights' error in forward shading
UE - Graphics Features - Sep 24, 2019The underlying reason seems to be that the stationary lights require SM channels for casting shadows from movable objects and they are assigned channels 0,1,2 by lightmass (or somewhere along the w ...
Water Exclusion Volume does not fully effect a Water Body
UE - Graphics Tools - Terrain - Water - Nov 21, 2022Regression: Tested in UE5/Release-5.0, issue also occurs User has stated that they were using the Exclusion Volume to create a hole in the water for a cave or tunnel so that the water is not visibl ...
Game View renders Lights with Actor Hidden In Game enabled
UE - Graphics Features - Dec 6, 2022This is not a regression. Tested in both 4.27.2 and //UE5/Release-5.0 CL20979098 Game View renders Lights with Actor Hidden In Game enabled. Documentation states: "...the Viewport to display the sc ...
SteamSockets not setup to handle Client/Session ID handshakes
UE - Online - Jan 13, 2023Repro Rate: 3/3 This is a live issue where the customer claims that the SteamSockets implementaton is not setup to handle the new Client and Session Id setup that was introduced in 5.1. This issue ...
Spherecast against complex geometry is returning odd results
UE - Simulation - Physics - Sep 19, 2023Turning on batching of sphere casts when colliding against complex gives incorrect results. Affects debug output and vehicle wheels and body movement. The issue is with the batch query mode which ...
Modifying the properties of a ChildActorComponent in a child blueprint can modify the parent actor ChildActorComponent properties.
UE - Framework - Blueprint - Dec 10, 2024When a property of a ChildActorComponent is modified in a child class, the parent ChildActorComponent class can also get modified. This happens when the Parent blueprint actor has a ChildActorCompo ...
Unnatural de-overlap occurs when moving inside a mesh-type collision located far from the origin
UE - Simulation - Physics - Jan 8, 2025The problem appears to occur when the distance from an edge is mixed with positive and negative values in VectorEPA function. The following workaround is suggested that uses absolute values of dista ...
Crash trying to rename a checked out umap
UE - Editor - Content Pipeline - Content Browser - Aug 25, 2017Editor crashes when a person renames a umap asset in the Content Browser that is checked out by another person. This doesn't occur if the user has the asset checked out themselves. ...
Child widget of Retainerbox draws with incorrect offset of RenderTranslation
UE - Editor - UI Systems - Feb 5, 2020The child widget of Retainerbox was applied incorrectly offset the RenderTranslation of the parent widget and draws it. This issue is 4.24 only. it's fine as well as the preview on UMG Designer in 4 ...
Imprecise Rotation Values produced in the Details Panel when using the Rotation Widget in the Viewport
Tools - Mar 29, 2016Starting with an asset (static mesh for instance) with a precise rotation value (such as a whole number) in the details panel will result in a imprecise, slightly fractional off value when rotated ...