Unreal Engine Issues
Unreal Engine Issues
Python function unreal.AssetRegistry.get_assets_by_class is broken
UE - CoreTech - Nov 21, 2022Repro Rate: 3/3 This issue was reproduced in //UE5/Release-5.1 at CL 23058290. This is confirmed to be a regression since the errors do not occur on the previous version and is regression tested o ...
Blueprint Doesn't Show Components Added at Runtime
Tools - Nov 2, 2015When a custom component is added at runtime, it does not show up in the details panel when you select the blueprint that it has been added to. Found in 4.9.2 binary. Reproduced in 4.10 Preview 3 a ...
Behavior Trees cannot be saved if the Blackboard assigned to it was opened before opening the Behavior Tree from the Content Browser
UE - AI - Nov 2, 2015Behavior Trees cannot be saved if the Blackboard assigned to it was opened before opening the Behavior Tree from the Content Browser. Reproduced in 4.8.3 binary, 4.9.2 binary, 4.10 Preview 3 binary ...
Adjusting properties of a Blueprint instance's components in the level does not update references to the properties in the BP's Construction Script
UE - Gameplay - Components - Oct 6, 2015Adjusting properties of a Blueprint instance's components in the level does not update references to the properties in the BP's Construction Script. Note: this would work in 4.8.3. Reproduced in 4. ...
Nanite mesh polygons disappearing when using masked opacity with vertex color in 5.4
UE - Graphics Features - Nanite - Jul 24, 2024In 5.4.3, a nanite enabled mesh with a material that takes its vertex color (R) and uses it as the opacity mask output in a masked blend mode material, causes the mesh to have disappearing polygons ...
Animation Sharing Plugin Removes Mesh Collision
OLD - Anim - Jun 11, 2019The referenced documentation does not state anywhere about collision being affected by animation sharing nor is the user expecting it to be affected. Even when the Collision Preset is overridden to ...
Scale with Width on Landscape Splines offsets plane mesh on Z axis
UE - LD & Modeling - Terrain - Landscape - Apr 22, 2015If "Scale with Width" is set on a landscape spline with a plane mesh, the plane will offset on the Z axis. In most other cases, scaling along the z axis does not affect planes. ...
Landscape Grass Foliage Instances Culling Incorrectly
UE - World Creation - Worldbuilding Tools - Foliage - Feb 20, 2017Foliage instances are culling incorrectly and seem to cull based off of the landscape components and/or entire foliage clusters. Regression? Yes, this issue does not occur in the 4.14.3 binary rele ...
Incorrect WorldType causes crash in ULandscapeSplinesComponent::CheckForErrors
UE - LD & Modeling - Terrain - Landscape - Jun 21, 2018When adding a sub-level that contains a Landscape and Landscape Splines to an existing Level, it will cause a crash when building the lighting. This issue was reported in 4.18.3 (CL 3832480) and t ...
Setting multiple identical actors to replicate movement will crash on PIE with multiple players
UE - Networking - Jan 28, 2015If ten or more of the same actor in a level have the "replicate movement" checkbox set to true, the editor will crash on PIE if the number of players is set to 2 (or with 1/2/3 players if dedicated ...