ForceFeedback Component - OnForceFeedbackFinished delegate isn't broadcast

UE - Gameplay - Input - Feb 5, 2021

The OnForceFeedbackFinished delegate isn't broadcast anywhere, so binding to it doesn't do anything. ...

Expanded vector parameters in Material Layer instance properties stay greyed out when override enabled

UE - Rendering Architecture - Materials - Feb 5, 2021

This only seems to happen when the vector parameter is expanded, not when it's collapsed. Collapsing and re-expanding the parameter seems to clear the issue as well. The material seems to use the o ...

Deleting a material layer from a stack, re-linking the layers, then deleting that layer again crashes the editor

UE - Graphics Features - Feb 5, 2021

The important step here is to unlink the middle layer after first relinking everything. ...

Deleting a material layer from the stack reverts other layers' overridden parameters to default

UE - Graphics Features - Feb 5, 2021

It appears as though parameters for downstream material layers are reverted to their default values and override states when an upstream material layer is deleted. ...

Executing r.setres does not render correctly when Orientation of Display is Portrait on Windows PC

UE - Rendering Architecture - RHI - Feb 5, 2021

This issue will display correctly in Portrait if you don't specify a resolution, but using r.setres will display it incorrectly. ...

Rich Text is offset when set as the child of a Retainer Box in a Widget Blueprint

UE - Editor - UI Systems - Feb 4, 2021

It seems that when playing a Rich Text Block into a Retainer Box, it causes the text inside the yellow row style to have additional spaces added to it. The user who reported this issue also had issu ...

ProceduralMeshComponent only supports 4 out of the possible 8 UV channels

UE - Graphics Features - Feb 4, 2021

Licensee reports that Procedural Mesh Component is apparently limited to 4 UV channels, which indeed appears to be the case (e.g. UProceduralMeshComponent::CreateMeshSection arbitrarily processing 4 ...

Activate Reverb Effect node fails to activate when placed behind a Delay node

UE - Audio - Feb 3, 2021

It seems that the Activate Reverb Effect node is no longer functioning when put behind a Delay node. In the test project, there is an empty actor with a Event Begin Play connected to a Delay node wh ...

Second controller input doesn't work setting client mode on PIE.

UE - Editor - UI Systems - Feb 3, 2021

When two controllers connected, player2 input is disabled in client mode in PIE. It worked correctly in 4.25, but it has been wrong since 4.26.  Digging into FSlateApplication::ProcessKeyDownEve ...

Linux - Crash when moving/turning the viewport camera in project that contains hair

UE - Graphics Features - Feb 2, 2021

I've attached the project log, crashreport, and crash info to this ticket. This issue only appears to be happening on Linux (On both Nvidia/AMD cards) and does not happen when the hair is disabled i ...