Unreal Engine Issues
Unreal Engine Issues
Code review for potential fix for crash where Velocity contains NaN
UE - Gameplay - Aug 20, 2015User crashed in the function "void UCharacterMovementComponent::PerformMovement(float DeltaSeconds)" due to a Velocity containing NaN. AnswerHub post details function calls that lead to where the N ...
Some enums getting reset in released 4.15 preview 2.
UE - Gameplay - Blueprint - Jan 28, 2017Investigate/fix navmesh tiles disappearing randomly when level stream in.
UE - AI - Feb 14, 2020See UDN description: https://udn.unrealengine.com/questions/554749/bug-navmesh-streaming-and-tile-corruption.html ...
Shadow doesn't update for a moving nanite mesh (fixed in 5.4)
UE - Graphics Features - Shadows - Mar 25, 2024When a nanite mesh moves, the shadow does not. ...
Fix sampling frame rate not properly setup for dynamic montages
UE - Anim - Gameplay - Oct 9, 2024Matinee movie recording is broken in 4.10
Tools - Dec 18, 2015When trying to record a movie from a matinee in 4.10, it can fail for a number of reasons: 1. The folder does not exist 2. The cinematic view modes do not take effect 3. Trying to record a streamin ...
Shipping build crash when unplugging then replugging Oculus HMD
UE - Platform - XR - Nov 9, 2016Game crashes in shipping build when un-pluging the Oculus HMD, then plugging it back in. Confirmed in 4.13.2 from the launcher, did not repro via same steps in 4.14 preview 3 ...
Sequencer - When a subsection has negative play rate, any nested sub-subsections fail to evaluate
UE - Anim - Sequencer - Jul 3, 2025Consider a sequence hierarchy with more than two layers. If the top-level sequence uses a negative timescale on a sub-sequence, the contents inside it animate as expected, but any nested sub-sequenc ...
GPUCrash - exiting due to D3D device being lost. (Error: 0x887A0006 - 'HUNG')
UE - Graphics Features - Oct 26, 2017This Jira is for the continuation of the "D3D HUNG" crashes which originally spiked in the UE 4.14 release. Some fixes were implemented in 4.16.2 and 4.17.0 which made some improvement to the freque ...
Physics simulation shows strange behavior with specific skeletal mesh configurations
UE - Simulation - Physics - Mar 3, 2017PhAT is inconsistent on when it does and doesn't apply scale to Constraint positions. This leads to cases where the positions provided create constraints that may not work when the Preview Skeletal ...