Managed particle systems can fail to be removed from managed ticking when pending registration

Rendering - Cascade - Mar 31, 2021

UParticleSystemComponent::SetComponentTickEnabled can fail to disable ticking due to IsTickedManaged not checking if the particles system is pending registration. The crash was in part because of c ...

Packaged ThirdPerson template with "start in vr" enabled packaged and launched with "-nohmd" crashes

XR - Mar 31, 2021

The callstack is not XR-specific, it's just the engine trying to secure the audio device on startup, windows failing to return one, and the app not being able to continue safely. The crash does not ...

Crash when adding a Material Layer with a MaterialFunctionCall node to a Material Instance

Rendering - Mar 30, 2021

Adding a Material Layer to a Material Instance that has a Material Function Call node connected to the Set Material Attributes node causes the editor to crash. I tested a Material Layer without the ...

Async Task nodes placed in editor only modules should not issue a warning if the proxy class is set to something in the game module

Gameplay - Blueprint Compiler - Mar 30, 2021

Because the proxy class is set to something within the game module, no warning is placed on the node as the outer package ends up being a valid Runtime module. This should actually be a warning in ...

Current Max Draw Distance Field doesn't update if actor detail panel is open when Desired Max Draw Distance is changed in BP Editor

Gameplay - Blueprint - Mar 30, 2021

This issue seems to occur if and only if viewing the value in the details panel. Following the above repro steps without looking at the value in the details panel, and then clicking the asset to ins ...

Placing WaterBody makes sub-levels that should have no effect dirty

Tools - Water - Mar 30, 2021

This issue occurs when using the Landscape Streaming Proxy. ...

Attach options for attach tracks do not work with additive transform sections

Anim - Sequencer - Mar 30, 2021

Attach options don't work for additive blend types (Additive, Relative and Additive From Base) ...

Image rendering is incorrect when RichTextBlock that displays an image is a child of Retainer Box

Tools - UMG - Mar 29, 2021

This issue occurs when using an image with RichTextBlockImageDecorator for RichTextBlock. This displays RichTextBox of RetainerBox and RichTextBox as it is. In the case of UMG Editor, the image is ...

Intermittent fatal assert in GetArchetypeFromRequiredInfoImpl for an object with RF_NeedLoad

Gameplay - Components - Mar 25, 2021

The archetype instance for the ProceduralMeshComponent's physics data object is not flagged as such, so the event-driven loader does not designate it as a preload dependency, which may be putting us ...