Error during packaging if nativizing a blueprint that contains a TMap with a UserDefinedEnum as a key

UE - Gameplay - Blueprint - Jun 17, 2019

Certain Map container calls (e.g. Find, Add) will fail to compile at packaging time if a Blueprint class containing a Map variable with a user-defined enumeration as the key type is nativized. This ...

Selection outline rendering inconsistently in VRMode

UE - Platform - XR - Mar 4, 2019

The cube (staticMesh) outlines are rendering in just the left eye while Box brush (Brush) outlines seem floaty and are rendering only in the right eye.  Does not occur in //UE4/Release-4.21 @CL 475 ...

Creating loaded world with LoadLevelInstance fails when PIE is executed.

UE - Gameplay - Jul 10, 2018

Loaded level defined in TSoftObjectPtr <World> fails to load with LoadLevelInstance. This is due to "UEPID" prefix. Because it is rewritten by FSoftObjectPath :: FixupForPIE (), retrieval of Object ...

Crash occurs when starting PIE on a level containing a FunctionalTest Blueprint and a sub-level with a landscape component in both levels

UE - LD & Modeling - Terrain - Landscape - Oct 23, 2018

Placing a FunctionalTest Blueprint into a level that contains a landscape component and a sub-level that also contains a landscape component results in a crash when PIE is started. This only occurs ...

Unable to Play Sequence in PIE when changing levels in C++ with ClientTravel()

UE - Anim - Sequencer - Oct 25, 2018

Changing levels with ClientTravel() breaks ability to activate sequence. Client Travel API: [Link Removed] Confirmed in 4.22 MAIN at CL 4503321  ...

Progress Percent is removed from UMG Progress Bar when Transform Shear value is changed

UE - Graphics Features - Nov 8, 2018

Modifying the Shear values on a Progress Bar in a Widget Blueprint cause it to lose its Fill Color and set Progress. This is a regression from 4.20.3 (CL-4369336). Reproes with -vulkan on both Linux ...

Crash on Level Load with Sequencer Event

UE - Anim - Sequencer - Nov 9, 2018

Crash when changing maps with sequencers new event director. Confirmed in 4.22 MAIN at CL 4553454 ...

Alpha Compression Artifacts

UE - Graphics Features - Nov 23, 2018

Confirmed in Main 4.22 @ CL 4586854 in 4.21 Alpha looks to be about 1 pixel larger than other channels in certain parts of the texture "The issue is not improved by changing compression settin ...

Setting KeepState as default in LevelSequences makes Sequencer blend animations not as expected

UE - Anim - Sequencer - Nov 27, 2018

Setting "Keep State" for an animation in sequencer makes the sequence behave differently in Sequencer and in Play Mode. The animations appear to be blending together instead of having normal transit ...