Xcode 8.3.2 fails to successfully build 4.15.1 from source code

UE - Platform - Apple - May 2, 2017

Attempting to build 4.15.1 from source code using Xcode 8.3.2 currently results in the build failing due to warnings that occur in fbxsdk, AlembicImporter, and MetalRHI. ...

Externally Referenced error is produced after cloning a 4.6.1 project and converting it to a 4.7.6 project

UE - Foundation - Core - May 13, 2015

A User in unable to save there project because of they get warnings for all of the objects in their scene saying they are externally referenced. This happens after cloning a project and then convert ...

InstancedFoliageActor experiences issues with floating point precision when far away from World Origin and is not affected by Origin Rebasing

UE - World Creation - Worldbuilding Tools - World Composition - Jul 17, 2020

Foliage generated by Landscape Grass Type do not encounter this issue. Only hand painted foliage with foliage tool is not affected by rebased origin. Foliage vibrates when it is located in long dist ...

Multiplayer Shootout project sample is crashing on start

Docs - Samples - Apr 3, 2015

The project sample Multiplayer Shootout in the Learn tab is crashing on start up with 4.7.4 Crash does not occur on 4.8. Tested by Patrick.D on Main CL-2498147 Pass in 4.7.5 dev. - CKC 2503383 ...

When a fixed delta time step of 0.02 or higher is used with some skeletal mesh objects, rotational forces applied using AddTorque have no affect on the skeletal mesh.

UE - Simulation - Physics - Jan 27, 2015

Using AddTorque to apply a rotation to a skeletal mesh does not always provide the expected results if a fixed time step is being used. When doing this to the Owen character in the Content Examples ...

Using Start Players as Spectators checkbox does not affect Player0

UE - Gameplay - May 20, 2015

When setting up a custom game mode blueprint, if the "Start Players as Spectators" checkbox is checked the first player loaded in PIE will not be in spectator mode. ...

FPS Perf Regression on 980

UE - Graphics Features - Mar 17, 2015

At least one user has so far reported a noticeable drop in FPS from 4.6.1 to 4.7.2 in a heavy scene; using a GTX 980. I've reproduced a perf drop in a cooked 4.7 build of elemental demo compared to ...

Crouch node does not appear to have any affect when called

UE - Gameplay - Player Movement - Jan 3, 2017

Crouch node does not appear to have any affect when called. The Is Crouching always returns false ...

Sequencer renders events affecting UMG twice

UE - Anim - Sequencer - Jun 1, 2016

Sequencer renders events affecting UMG twice ...

Transition Screen Size does not affect LODActors

UE - World Creation - Worldbuilding Tools - HLOD - Nov 18, 2016

Transition Screen Size doesn't seem to affect when LODActors are added to the level. This was occurring before Dev-Framework's merge into Main at CL 3198987. ...