Naming CustomEvent string Input "DisplayName" breaks Blueprint Node

UE - Gameplay - Blueprint Editor - Jan 4, 2018

Naming a custom event string input DisplayName will cause the BP Node spawner to use blank or user-entered data for node listing+creation. Additional Notes: This also occurs when renaming the Text ...

UMG screen size setting needs update for new mobile devices

Tools - Oct 29, 2018

We're missing settings for iPhone XS iPhone XS Max iPhone XR Google Pixel 3 Google Pixel 3 XL Samsung Galaxy Note 9 We also don't have settings for iPad 5th Gen or iPad 6th Gen, however these would ...

Datasmith Metadata is lost when actor is converted as BP

UE - Editor - Content Pipeline - Datasmith - Importer - Dec 7, 2018

This behavior does not occur on actor tags and component tags so it is something we haven't considered when adding the metadata feature. ...

Separate downsampled translucency manually updates the view uniform buffer without invalidating the cached view.

UE - Rendering Architecture - RHI - May 20, 2019

In TranslucencyRendering.cpp, FDeferredShadingSceneRenderer::RenderTranslucency, the following code: FViewUniformShaderParameters DownsampledTranslucencyViewParameters; SetupDownsampledTranslucenc ...

IPhonePackager failing with Mono v6

UE - Platform - Mobile - Aug 29, 2019

Mono v6 throws an exception when setting: LogTemp: IPP ERROR: Application exception: System.PlatformNotSupportedException: The FriendlyName value cannot be set on Unix. LogTemp:   at System.Securi ...

Linux Vulkan editor crashes OOM on older graphics cards

UE - Graphics Features - Oct 19, 2018

Vulkan editor is very crashy on older cards due to memory pressure. I have to switch to OpenGL to work on the unrelated bugs. I'm attaching the details of the particular failure I had (see VulkanMe ...

iOS App Store ITMS-90809: Deprecated API Usage from UIWebView APIs

UE - Online - Sep 19, 2019

Users are receiving "ITMS-90809: Deprecated API Usage - Apple will stop accepting submissions of apps that use UIWebView APIs . See [Link Removed] for more information. " issue when submitting apps. ...

Subobject components do not have undo functionality within the level

Tools - Jan 4, 2021

When moving these components around in the world editor, the transform gizmo will move with the undo, but the actual component will not.  I could not repro this behavior with non-native component ...

FCPXML export is off by one frame

UE - Anim - Sequencer - Feb 10, 2021

It looks like FCPXML is off by one frame for the MRQ export. For the old movie scene capture tool, it appears correct. ...