Unreal Engine Issues
Unreal Engine Issues
OpenGL: Nvidia: Crash when using foliage tool
UE - Platform - Linux - May 7, 2015As reported by user, using foliage tool in a first person project eventually crashes it. "Currently, any attempt to render objects created with the foliage tool crashes the UE4 editor on my machine ...
Able to set default values for Sequence & Map variables for a Movie Pipeline Executor Job causing an Ensure & Crash
UE - Anim - Sequencer - MRQ - Apr 18, 2022Able to set default values for Sequence & Map variables for a Movie Pipeline Executor Job causing an Ensure & Crash. Repro Rate: 4/4 Tested this in //UE4/Release-4.27 @ CL#18319896 and the user is ...
[MetaSounds] - Changing an Input to Modulation Parameter crashes editor due to module load order
UE - Audio - MetaSounds - May 27, 2022Setting an Input type on Modulation Parameter crashes the editor with:Assertion failed: Pair != nullptr [File:E:\SMoyls_UE5_Release-5.0\Engine\Source\Runtime\Core\Public\Containers\Map.h] [Line: 643 ...
UE5.6+ - Mutable - IDPrefix crash when combining Child Objects, Add to Mesh Component and Extend Mesh Section.
UE - Anim - Mutable - Jul 21, 2025So the issue seems to be a combination of Add To Mesh Component and Extend Mesh Section. I've tried this in Epic Launcher 5.6, 5.6 in-house modified engine as well as ue5-main 5.7 from git (editor ...
Control Rig parameters don't function in the AnimBP after the Editor restarts
UE - Anim - Rigging - Control Rig - Jun 14, 2020Control Rig parameters don't function after editor restarts. Also the default values don't function and you need to use an input instead of directly editing the values of the pins. You can work aro ...
Crash on opening Control Rig asset that was created in UE5-EA
UE - Anim - Rigging - Control Rig - Nov 8, 2021This issue was found from an external user on Twitter using UE5-Early Access - [Link Removed] The crash happens on asset load. User says that they were following Gabriele's video - [Link Removed] ...
USD - FGeometryCacheSceneProxy crashes engine when rendering through command prompt
UE - Editor - Content Pipeline - USD - Aug 23, 2021Came across this bug when verifying [Link Removed] Closed . Seems there was a different crash reason. When testing, this bug ...
Network Prediction Insights tool checks/crashes with trace data from a multiplayer PIE session
UE - Gameplay - Network Prediction - Mar 27, 2024Loading a trace in Insights that has Network Prediction channel data from a multi-client PIE session will hit a check and crash the Insights tool. ...
Dynamic Mesh component collision detection isn't treated like a volume
UE - Simulation - Core - Jul 7, 2022Tested in //UE5/Main CL#20966071 with the same results. Dynamic Mesh component collision detection isn't treated like a volume. End Overlap fires when the character stops Overlapping the side of th ...
SteamSockets not setup to handle Client/Session ID handshakes
UE - Online - Jan 13, 2023Repro Rate: 3/3 This is a live issue where the customer claims that the SteamSockets implementaton is not setup to handle the new Client and Session Id setup that was introduced in 5.1. This issue ...