Unreal Engine Issues
Unreal Engine Issues
Execution Doesn't Resume When Hitting BT Task Breakpoint and Trying to Resume in the Behavior Tree
UE - AI - Oct 6, 2017When a breakpoint is hit in a BT Task Blueprint, execution will not be resumed if you attempt to do so from the Behavior Tree that is running the BT Task. This will cause a crash if executed in the ...
Draw debug points do not draw at the same sizes in Orthographic viewports as they do in Perspective viewports
Tools - Oct 30, 2017With the Draw debug points node, the points do not draw at the same sizes in Orthographic viewports as they do in Perspective viewports. This issue does not appear to be a regression. Versions Test ...
SetupToolChain.sh hasn't been updated to the latest version within Linux Installed Builds
UE - Platform - Linux - Jul 18, 2023Repro Rate 3/3 Regression status is under investigation You are able to still package the project by ignoring and continuing after the dialog box is displayed in the Actual Results as it will util ...
Geometry collection marked as nanite has no fallback in cooked build when nanite is disabled
UE - Rendering - Architecture - Dec 11, 2023When geometry collection is set as nanite, there is no non-nanite render data cooked. This means that there is no fallback if the cooked build uses r.nanite 0. This used to work with some code worka ...
Vive Trackpad X and Y always return 0
UE - Platform - XR - Feb 3, 2020Platform-specific input for pad axis in 4.24 leads to missing value in VIVE. in 4.23.1 this is not reproduced. ...
GenerateVisibileRayTracingMeshCommands Severely Reduces Foliage Performance Even if no RayTracing is Used
UE - Graphics Features - Lumen - Sep 18, 2019GenerateVisibileRayTracingMeshCommands Severely Reduces Foliage Performance Even if no RayTracing is Used. Found in 4.23 CL# 8386587 and 4.24 CL# 8748719 ...
Texture asset only exportable as .COPY and .T3D
UE - Editor - Content Pipeline - Import and Export - Dec 13, 2019Export for certain marketplace asset limited to .COPY and .T3D (and .BMP in 4.24) I was unable to reproduce this with a texture that I created even with Grayscale / sRGB disabled. ...
Copying values of an array created through C++ does not copy all values
Tools - Aug 24, 2017Copying values of an array created through C++ does not copy all values, only the first value is copied over. This is different than an array that is created in blueprints when those are copied they ...
Interaction between sublevels and LevelSequences can break actors attachments hierarchy of the sublevel.
UE - World Creation - Worldbuilding Tools - Aug 6, 2025Having a LevelSequence opened and unhiding a sublevel can break the attachment hierarchy of the actors that are inside the sublevel. This also affects to the sublevel asset itself. ...
MAC: UE4 Editor crashes in gldReadTextureData on Nvidia 330M
UE - Platform - Apple - Dec 15, 2014A user is reporting semi-regular crashes on his MBP 6,2, with Nvidia 330M GPU. This is a GL 3.3 GPU which we don't routinely test against, he may have the 256 or 512MB model, but this is unclear. T ...