10 or more Static Meshes set to Simulate Physics and Replicates Movement will crash the editor with PIE set to 2 or more players

UE - Networking - May 19, 2015

10 or more Static Meshes set to Simulate Physics and Replicates Movement will crash the editor with PIE set to 2 or more players. Less than 10 don't cause a crash. The user reporting this got a mor ...

OnMovieClipFinished returns the incorrect movie name

Tools - Jun 29, 2017

When OnMovieClipFinished is called, it will return the name of the movie clip that is about to be played rather than the clip that had just finished. Regression: Yes This did not occur in 4.15.3 B ...

Disabling Occlusion Culling and DBuffer Decals causers crash

UE - Graphics Features - Sep 1, 2017

THere is a crash that occurs when opening a project after the Occlusion Culling and DBuffer decals option are unchecked. There are times where the Unreal Crash reporter catches the crash and display ...

"+Create Binding" added to a "Text Block" makes the Text not visible in Standalone Game

UE - Editor - UI Systems - Sep 6, 2017

The visibility of the Text depends on the "+Create Binding" being added or not added. Now, If we go into our Widget Blueprint Designer > over in the Details panel under Content > Select "Bind" and ' ...

Vertex Colors distort after merge actors is used

OLD - Anim - Sep 11, 2017

When using the merge actor tools with Vertex colors painted on, the resulting mesh will have those colors distorted. This issue occurs only with the resulting static mesh. This issue is a regression ...

Cameras rotate incorrectly in Sequencer when using Key All and Auto-Key options

UE - Anim - Sequencer - Dec 14, 2018

Sequencer is having issues handling a camera rotation going past -180 or 180 degrees with multiple keyframes when Key All and Auto-Key options are enabled. This results in unwanted 180 degree flip w ...

Wrong IDE loads when Visual Studio 2019 is selected

UE - Foundation - Cpp Tools - May 22, 2019

Visual Studio 2019 does not load even when it is selected as the chosen IDE. Instead the editor loads Visual Studio 2017. If you create a new C++ class after switching the IDE and restarting the Edi ...

Landscape has a seam when scale is set to a decimal

UE - Graphics Tools - Terrain - Landscape - Jan 13, 2023

Regression: Tested in UE5/Release-5.0 at CL 20979098, this issue does occur so it is not a regression. This issue occurs if the scale set for the landscape has a decimal value that is not 0.5. Sett ...

Crash in FPrimitiveSceneProxy::UpdateInstances_RenderThread in CitySample

UE - Rendering Architecture - May 5, 2022

The following check fails occasionally: check(InstanceCustomData.Num() == (NumCustomDataFloats * InstanceSceneData.Num())); I was not able to narrow down more precise repro steps, but it appears t ...

Expand Node crashes engine

UE - Gameplay - Blueprint - Dec 4, 2014

The engine crashes when after right-click > Expand Node on any composite node. Crash Report: [Link Removed] ...