Blueprints converted to static mesh with negative scales for a component will invert the faces

Tools - Dec 19, 2016

Negative scaled static mesh components in a blueprint will invert their faces when converted to a static mesh. Note that this does not happen in the following situations: If the BP is scaled negat ...

AnimNotifies get reproduced more times than expected.

UE - Anim - Sep 3, 2024

When setting an AnimNotify to an AnimationSequence, this AnimNotify can be triggered multiple times when only set once. This issue only happens when the mentioned AnimationSequence that contains the ...

Cannot save actor after actor component modification, Graph is linked to private object(s) in an external package

UE - Gameplay - Blueprint - Sep 28, 2016

Cannot save actor after actor component modification. The user gets the error Graph is linked to private object(s) in an external package ...

Using "Change Class" on Spawnables, Possessable references retain old Class info

UE - Anim - Sequencer - Apr 22, 2024

Changing Class for Spawnable objects in Level Sequence did not have any impact on Possesable objects in Subsequence. It's still referencing the previous Class. Also found in Release-5.4, CL: 329753 ...

Increment and decrement nodes return the incorrect value

UE - Gameplay - Blueprint - Jun 23, 2015

Increment and decrement nodes return the incorrect value User Description: Getting the result of the Increment Macro seems to be incrementing the variable twice. Very confusing. Is this normal? ...

Mobile Preview -> AutoLandscape Material broken if created in 4.22+

UE - Platform - Mobile - Oct 25, 2019

Landscape Layers created in 4.22+ revert to default material in Mobile Preview. Confirmed in MAIN at CL 9730599 ...

AllowCommandletRendering D3D12 device crash

UE - Graphics Features - May 10, 2021

Distance Field shadow culling when view is at certain angles

UE - Graphics Features - Aug 4, 2015

Distance Field shadows are culled for larger meshes at certain angles of the cameras view position. Map with reproduced setup is attached. ...

Planar Reflections on Mobile short view distance for non single plane faces

UE - Platform - Mobile - Jul 7, 2016

Planar Reflections on mobile work well with single plane assets but not with anything with multiple sides, like a box. Tested in: 4.12.4 CL-3028348 4.13 Dev-Editor CL-3038075 ...

Component properties cannot be edited for instances of a Blueprint if more than one instance of that Blueprint in the level is selected

UE - Gameplay - Blueprint - May 5, 2017

Properties of components that are added to a Blueprint cannot be set in the Details panel for instances of that Blueprint in the level if multiple instances are selected. These components also do no ...