Nullptr dereference in FHeadMountedDisplay::UpdateSplashScreen()

UE - Platform - XR - Apr 5, 2017

A customer has had problems running a game with a splash screen when passing -game flag to the editor. UpdateSpashScreen will call GetCurrentFrame, which can return a nullptr but fails to verify it ...

BP - Nativization will fail at cook time if a BP class and a User-Defined Structure reference each other.

UE - Gameplay - Blueprint - Apr 20, 2017

Note: This happens with "Exclusive" nativization mode as well. This occurs because the nativized UDS 'GetDefaultValue()' method is generated into a .h file rather than a .cpp file. This creates a c ...

[CrashReport] Ongoing CollectGarbageInternal() assertion in 4.17

Tools - Aug 22, 2017

This callstack is occurring in 4.17.0 and 4.17.1, and appears to be a continuation of [Link Removed], which was fixed in 4.16.2 with CL 3502786. I'm not re-opening [Link Removed] because there are ...

Color and Opacity animation option does not play for Button component

UE - Editor - UI Systems - Aug 25, 2017

Color and Opacity animation option does not play for Button component, this occurs both in the Widget editor and during play. This issue is not a regression Versions Tested: 4.16.3 - CL: 3561208 - ...

Game view cannot be changed in Orthographic view

Tools - Sep 29, 2017

The Game view cannot be changed in Orthographic view despite that the Orthographic views can be affected by the game view options. This issue does not appear to be a regression. Versions Tested: Is ...

Blueprint fails to compile after adding local map variable element

UE - Gameplay - Blueprint - Oct 11, 2017

When a map is added as a local variable for a blueprint function, the blueprint will failt o compile. Regression: No, same behavior occurs in 4.16.3 Workaround: Setting the key/value pair to int/i ...

Sine Wave audio plays choppy in editor

UE - Audio - Dec 4, 2017

Playing a sine wave as an audio sample in the editor produces a choppy sound when it does not outside of the editor. This issue does not appear to be a regression. Versions Tested: Issue occurs in ...

Impossible to reparent blueprint class that has a broken parent class when using compilation manager

UE - Gameplay - Blueprint Compiler - Dec 8, 2017

Alternatively use BP_ParentClassIsMissingType in QAGame ...

Normal are different after Merge Actor on scaled objects

OLD - Anim - Feb 8, 2018

Normal are different after Merge Actor on scaled objects. If the actors aren't scaled, the issue doesn't seem to occur. A licensee is trying to use the Merge Actor tool to optimize their entire pro ...

Sequencer: Shot Comprised of Several Shots Set to "Evaluate Subsequences in Isolation" Timeline Does Not Scrub

UE - Anim - Sequencer - Apr 24, 2018

When opening NewLevelSequence, opening shot0010_001, changing the playback settings to Evaluate Subsequence in Isolation, switching back to NewLevelSequence, opening shot0020_001, and scrubbing, ani ...