Networking Engine Tests fail for NotifyParamCorrect on Client

UE - Networking - Oct 2, 2019

The following errors occur when running the networking engine tests with 2 clients and a dedicated server. LogFunctionalTest: Error: Assertion failed: 'EngineTestNetActorComponent bRepArrayAddNotif ...

NavModifierVolume's FailsafeExtent is applied to the wrong area

UE - AI - Apr 16, 2020

The FailsafeArea of NavModifierVolume is generated at a different location from the center of the actor when it rotated. This means that the effect of rotation is incorrect. (see attached file) W ...

MoviePipeline skipped frames using Temporal Subsampling + Time Dilation

UE - Anim - Sequencer - Jun 30, 2020

The frame appears to be getting skipped entirely, but the timing for the frames on either side of them is correct, ie: if frame 10 is skipped, frame 9 and 11 still match the working case, so the ove ...

Oscillating Biquad Filter's Cutoff Frequency results in popping

UE - Audio - MetaSounds - Dec 8, 2022

Reproduced 7/10 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. Additional Notes:Stacking more Biquad Filters produces a more noticeable effect, but ...

Ocean does not completely fill water zone in certain circumstances

UE - Graphics Tools - Terrain - Water - Jan 26, 2023

Issue reported in [Link Removed] by [Link Removed] 1. Add one component to the 8K Landscape. [Image Removed] 2. Adding Ocean will not render correctly. [Image Removed] [Image Removed] These ca ...

[Quartz] - Playing a Force Inline SoundWave asset with PlayQuantized crashes editor

UE - Audio - Quartz - Aug 17, 2023

Calling PlayQuantized on an asset set to Force Inline crashes editor:Assertion failed: SoundWaveDataPtr->GetLoadingBehavior() != ESoundWaveLoadingBehavior::ForceInline [File:D:\SMoyls_UE5_Release-5. ...

Objects animated in Sequencer fail to trigger collisions against stationary characters with character movement components

UE - Gameplay - Player Movement - Oct 22, 2024

When an object, such as a cube, is animated in sequencer and that object's path intersects a stationary character with a character movement component, the object will pass through the character with ...

Datasmith - Lights imported with incorrect transforms

TM - Interoperability - May 6, 2025

Reported in SF [Link Removed] In Twinmotion 2025.1.1, lights imported through Datasmith appear with incorrect transforms. Lights will appear rotated 90 degrees about the Y axis with an offset. Test ...

Allow promote to variable on Color structs/Vertex Colors structs for Procedural Mesh components

UE - Gameplay - Oct 13, 2015

Issue: Currently, it is not possible to make a variable of type "Color" specifically for the color struct on procedural mesh components (see image attached). This is the only variable on procedura ...

called custom functions do not update parameter names upon compile, must be replaced

UE - Gameplay - Blueprint - Apr 21, 2015

Parameter names do not update on custom functions that are already called in event graph after compiling blueprint. ...