Unreal Engine Issues
Unreal Engine Issues
Duplicating SkeletalMesh in packaged game causes crash
UE - Graphics Features - Nanite - Mar 11, 2025This code worked until UE5.4. NaniteResource added in 5.5 causes this issue. ...
Some Planar Reflections not working on more than one surface if it's a single mesh
UE - Graphics Features - Nov 2, 2016Planar Reflections only work with a single surface or limited surfaces when it's a single mesh vs multiple meshes making up the piece. Attached is a sample project that will show the issue. Level ...
Planar Reflections do not appear to cull based on the view frustum
UE - Graphics Features - Oct 27, 2016View Frustum and Occlusion culling do not appear to work for Planar Reflections though the stats in PIE seems to indicate otherwise. I've attached two gifs showing View Frustum and Occlusion chec ...
Sphere Reflection Captures overridden by Skylight
UE - Graphics Features - Jun 10, 2025When using non-Lumen lighting and Screenspace reflections off, the skylight location overrides the Reflection Capture location during Build Reflections. This results in a Reflection Capture taken fr ...
Event Dispatcher not being called in 4.6
UE - Gameplay - Blueprint - Dec 8, 2014ED nodes in 4.6 but are not being executed in standalone or cooked games. Also, users receive compile errors when the project is saved and reopened that resolve when the blueprint is recompiled. ...
Dynamic Parameters do not function in Beam Emitters
UE - Graphics Features - Apr 10, 2015Transfered Issue from TTP # 298314, originally opened in TTP on 6/3/2013 and updated with Answerhub post information on 5/18/2014 Dynamic Parameters cannot be used with a Beam Emitter, they pass no ...
AttachRootComponentToActor being used over a network can cause an Ensure (previously an Assertion) to be triggered.
UE - Gameplay - Jan 11, 2016This is a continuation of [Link Removed]. The previous ticket changed an Assertion to an Ensure in order to stop a crash from occurring, and stated that a more complete fix would be coming in 4.10. ...
LogUMG: Error: The requested size for SRetainerWidget is 0. W:739 H:0 when opening or updating a curve using the StackedCurve view
UE - Anim - Sequencer - Feb 6, 2023The following error is generated in the Output log whenever a Wave Table is opened or any of the graphs are modified. It also occurs when adding an Input to a Sound Modulation Parameter patch or add ...
Switchboard Unable to Launch Multi-User Slate Server in Launcher Builds
UE - Virtual Production - Tools - Switchboard - Jan 14, 2023Switchboard is unable to launch the Multi-User Slate Server in launcher builds. This is because the default install location has "Program Files and "Epic Games" in the path (aka folders with spaces ...
Asset values change when the Editor is out of focus when using Maya or Web Browser
Tools - Jul 18, 2018When switching between any open software (Maya, web browser) and UE4 while Simulation is running, sometimes the values change on the asset and it starts to oscilate between <-0.6,0.6> or any other s ...