Unable to Play Sequence in PIE when changing levels in C++ with ClientTravel()

UE - Anim - Sequencer - Oct 25, 2018

Changing levels with ClientTravel() breaks ability to activate sequence. Client Travel API: [Link Removed] Confirmed in 4.22 MAIN at CL 4503321  ...

Child Actors are not replicated to clients when the parent blueprint is nativized

UE - Gameplay - Feb 22, 2019

Child actors do not replicate properly to clients when their parent blueprint is nativized. Regression?: Yes This did not occur in 4.20.3 See also [Link Removed] ...

Tessellation not working properly on Vulkan

UE - Graphics Features - Jan 25, 2018

When a user launches content examples with -vulkan tessellation will not be working. Everything tessellated will appear as if it has no tessellation. This issue is also occurring in 4.18 ...

Timelines in ActorBPs no longer function when packaged with Nativization

UE - Gameplay - Blueprint - Apr 9, 2019

Timelines in ActorBPs no longer work in projects packaged with BP nativization. Timelines in LevelBPs still work. Confirmed in 4.23 MAIN @ CL 5806859 ...

PhysX Clang Builds Broken

UE - Simulation - Physics - Nov 5, 2019

Clang physx builds in 4.23 seem to be broken due to a change of GuPersistentContactManifold.h including #pragma warning and no longer ending in a new line. ...

Resetting the RGB values of a Sky Atmosphere's Absorption

Tools - Nov 27, 2019

Resetting the RGB values of the Absorption to a Sky Atmosphere using the 'reset to default' arrow still appears after pressed. Tested in: 4.25 CL#10387577 ...

Modulated Shadow doesn't work

UE - Platform - Mobile - Aug 7, 2020

4.22 is working On Mobile sometimes Modulated Shadow is useful for Cast custom color and value Shadows on Unlit objects(custom celshading for example) ...

Setting Texture Object within Niagara fails to update texture

UE - Niagara - Jan 11, 2021

Based off of a saleforce ticket, it seems that reinitializing a niagara system with an updated texture, the texture does not update. The setup works correctly in 4.25, so marking as a regression. ...

Volumetric Render Target Mode 2 is blending past frames.

UE - Graphics Features - Dec 2, 2021

Volumetric Render Target Mode 2 is blending past frames in Time of day map with the volumetric clouds.  This is a regression due to it not happening in 4.27 ...

DefaultEngine.ini restored after deleting does not match the originally generated DefautlEngine.ini

UE - Editor - Mar 14, 2022

Regenerated DefaultEngine.ini should regenerate with D3D12 RHI not D3D11 RHI which would match the original generation of the file. 4.27 is  generated with D3D11 and regenerated with D3D12.  ...