Enabling ChaosCaching plugin results in packaged game no longer opening

UE - Simulation - Physics - Destruction - Jan 19, 2021

ChaosCaching plugin appears to break packaged games. No warnings/errors reported in the log or when attempting to open the produced .exe. My task manager does not show the game process running at al ...

UnrealEditor hangs at 96% when launched on Linux

UE - Platform - Linux - Jan 14, 2021

Unshelving the CL's mentioned in the repro steps causes Unreal Editor to stall when loading up on Linux. Issue still occurs when the unshelved CL files are reverted. ...

UMG Animations on existing widgets break when loading new level

UE - Editor - UI Systems - Jan 14, 2021

Marking as a regression as this does not occur in 4.25.4 User description: I want to have UMG UI that persists for the lifetime of the game so I create my root widget and add it to the viewport fr ...

Anim Notifies and Curves are removed when saving Linked Animation Sequences through Sequencer

UE - Anim - Sequencer - Jan 12, 2021

Found from AnswerHub: https://answers.unrealengine.com/questions/1005466/view.html ...

Ensure playing a sequence that has an event trigger that calls SetPlaybackPosition

UE - Anim - Sequencer - Jan 12, 2021

https://answers.unrealengine.com/questions/1003504/loadsequence-and-where-is-setplaybackposition.html ...

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. ...

[Soundfield Submix][Crash] - Unreal Ambisonics Crashes on Packaged Game and in Standalone

UE - Audio - Submixes - Jan 11, 2021

Issue was reported by a user on the Unreal Engine forms. I tried to package the game with the other encoding options and this appears specific to using the Unreal Ambisonics option.  I have only co ...

Vulkan RHI when execute the node "Create Render Target 2D" when enabling the option "AutoGenerate Mip Maps"

UE - Rendering Architecture - RHI - Jan 11, 2021

Unreal Crash in with Vulkan RHI when execute the node "Create Render Target 2D" with the option "AutoGenerate Mip Maps" then execute "Draw Material to Render Target" Opening the project also opens ...

Crash when reimporting skeletalmesh with metadata

UE - Editor - Content Pipeline - Import and Export - Jan 11, 2021

Crash when we restore metadata after re-importing a skeletalmesh. ...