Unreal Engine Issues
Unreal Engine Issues
HTML5 fails during Package Command with ASM enabled
UE - Platform - Mobile - May 10, 2017While testing in //UE4/Release-4.16 CL 3432136 in Binary – Launching a blueprint - FirstPerson template to Chrome encounters an error.LogPlayLevel: Program.Main: ERROR: AutomationTool terminated wit ...
WidgetInteractionComponent Simulate Key Press/Release only works the first time
UE - Platform - XR - Oct 6, 2022Occurs 3/3 times. Working around this includes closing the menu and reopening it to reset the button(s). The expected behavior is that the user should be able to select Reset Orientation repeatedly ...
Editor Crashes when clicking on Transform(Modify) Bone node in Content Examples
OLD - Anim - Mar 4, 2015Crash Report: [Link Removed] Error Message: Assertion failed: ResultString.Num() == 3 [Link Removed] [Line: 298 Description: In the Content Examples Project, in the Blueprint, "CurveAnimBlueprint_ ...
Crash editing Transition Logic after deleting State and Transition in State Machine
UE - Anim - Runtime - Anim Blueprints - Sep 8, 2020Attempting to click on a node in a Transition Logic that has been opened in a new tab will cause a crash when the correlating State node and it's transition have been deleted from the State Machine. ...
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 ...
Camera height in the VR template appears lower (floor level)
Docs - Samples - Aug 7, 2017The camera is much lower in Latest (4.17) version of the engine than it was in the previous (4.16) version of the engine. Tested with the oculus rift Regression ...
Widget Slider increments in an odd way when it is dragged outside of its bounds when next to another Widget
UE - Editor - UI Systems - Aug 6, 2020The attached video shows the results of this bug. When two Widgets are next to each other and one of them has sliders, when the sliders are dragged past their bounds they will increment backward so ...
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 ...