Unreal Engine Issues
Unreal Engine Issues
Vector Field Initial Rotation will always have the same initial rotations for each emitter instance
UE - Niagara - Nov 11, 2019The Vector Field Initial rotation module will have the same rotation for all instances of the same emitter. This is a regression from 4.22. ...
Particle System check for IsActive in Blueprints does not reset
UE - Graphics Features - Jan 4, 2016When using a particle system in a blueprint and then moving the particle system off screen and then back on there is the node "Is Active" that can check to see if the Particle is still active. When ...
Runtime float curves not applied in inherited blueprints
UE - Framework - Blueprint Runtime - Mar 13, 2023Cascade Shadow Map octree not handling new max world size
UE - Graphics Features - Jul 21, 2025Cascaded Shadow Maps do not use the proper world size for octree culling. At far distances, the shadows are always culled. ...
Editor crashes when selecting compile after copying a Custom event to another blueprint
UE - Gameplay - Blueprint - Jul 28, 2016User will hit an ensure first when pasting a copied custom event, and will crash after compiling. ...
Animgraph-Blend node-Alpha Scale Bias-larger values imprecise
OLD - Anim - Jan 21, 2015When setting the alpha scale bias for a blend node in the AnimGraph, if you set the values so that the difference is greater than 10, the values will not enter as whole numbers (see image.) ...
Add and Renaming collapsed graphs in functions breaks refs to local vars
UE - Gameplay - Blueprint Compiler - Nov 6, 2020When creating a class (of any kind i.e. an actor), when a collapsed graph is compiled the ref breaks when adding or renaming the graph. ...
Real Time Preview for Converted Vector Parameters not working
UE - Graphics Features - Dec 5, 2014The Real Time Preview of Converted Vector Parameters from the Material Editor are not currently previewing in the level viewport without re-compiling the material. ...
Morph target LOD over 0 not worrking with GPU skin
UE - Rendering Architecture - RHI - Dec 17, 2019I do not know what happen here and I need the help of the rendering team to debug this issue. There is no log at all even with -d3debug If you import the file SK_LOD_Morph_Working.fbx its a similar ...
Deleting a material layer from a stack, re-linking the layers, then deleting that layer again crashes the editor
UE - Graphics Features - Feb 5, 2021The important step here is to unlink the middle layer after first relinking everything. ...