When the value of the TMap variable of the child blueprint is changed and compiled, it will restore to the default value of the parent blueprint.

Gameplay - Blueprint - Sep 1, 2021

For TMap variables of type struct created in blueprint, if change the default value in child blueprint and compile, it will restore to the default value of the parent actor. This problem does not o ...

Replicated component destruction not reaching client

Networking - Aug 31, 2021

See the attached UDN for more information and a sample project reproducing the issue. This issue seems to happen due to a specific order of events. First, the component is destroyed, and garbage col ...

Strange Artifact under SingleLayerWater with dynamic directional light and LightPropagationVolumes

Tools - Water - Aug 30, 2021

upd. Regression was checked on //UE4/Release-4.26 CL 15973114, the issue was reproduced. Regression - No [Image Removed] ...

Unused parameters listed as used but "found in none"

Rendering - Features Teams - Aug 30, 2021

In material instances with the parent material depicted in the attached image I expected "Param" to be considered as unused since it's attached to Opacity and it's not used (ie not attached to outpu ...

Failed to build in Github UE4.27.0.

Simulation - Physics - Aug 30, 2021

Failed to build UE4.27.0 with Win64/Development Editor.  Can avoid this error that excluding the project from build configuration. (Solution UE4->Properties->Configuration Properties->Configuratio ...

Editor crash when disabling looping in a nested subscene

Anim - Sequencer - Aug 26, 2021

Disabling looping in a nested subsequence seems to crash the editor upd. Regression was checked on //UE4/Release-4.26 CL 15973114, the issue wasn't reproduced. Regression - Yes ...

DistanceFieldBentNormalAO does not appear to work with imposter UVs

Rendering - Features Teams - Aug 26, 2021

I have not entirely ruled out any issues with the imposter material in the repro, there's a chance this is related to the normal rotations, but turning off distancefields entirely does fix the issue ...

Cloth Rendering - Optimizations cause a one frame geometry stretch when off screen cloth is teleported back on screen.

Simulation - Physics - Character - Aug 26, 2021

Render optimizations are causing the cloth render data to be updated one frame too late after an off screen cloth object has been teleported back on screen. The optimisation triggers itself after a ...

Integrat PhysX crash fixes

Simulation - Physics - Solver - Aug 24, 2021