Crash when getting input action value from a component

UE - Gameplay - Input - Nov 30, 2022

NOTE: I have been unable to repro this locally, but the crash is because of a null de-reference so we can at least add that to fix up the issue for them.  ...

Map Find node keeps a stale value on the value output pin from a previous call even if it returns false

UE - Gameplay - Blueprint Compiler - Jul 13, 2017

See repro and screenshot. ...

Updating to 4.13 from 4.12 Causes Particle System Orientation to Break When Cooked

UE - Graphics Features - Sep 16, 2016

When updating a particle system with the mesh data type to 4.13 its orientation will change after being cooked. This issue will not appear with PIE, or Stand alone you must Launch from editor. A 4.1 ...

Transforming keys in Sequencer changes the interpolation of the keys

UE - Anim - Sequencer - Dec 19, 2016

Going over the new features for 4.15 and I noticed that adjusting the transform of the keys in Sequencer, causes them to change to a linear interpolation. This is also effected if you select Transfo ...

Crash upon launching packaged game with nativized blueprints that include Add Child Actor Component node with a class already set

UE - Gameplay - Blueprint - Jun 14, 2017

When using the Add Child Actor Component node with a class set on the node with Blueprint Nativization enabled, the packaged game crashes upon launch. A workaround for this is to leave the class bla ...

Game instance spawning object crashes .exe in packaged project

UE - Gameplay - Blueprint - Mar 19, 2015

If an actor is spawned using game instance blueprint, a packaged .exe will crash upon loading. Frequency: 2/2 Crash Reporter: [Link Removed] ...

Retopologized landscapes ignore collision when mip level set to 1

UE - LD & Modeling - Terrain - Landscape - May 14, 2015

Object collision ignores landscape components that have been retopologized if the landscapes collision mip level is set to 1 instead of 0. ...

Game does not exit when exited through SteamVR UI

UE - Platform - XR - Oct 13, 2016

Previously the game would crash (see: [Link Removed]), but the fix now keeps the game running without VR instead. ...

LandscapeComponent generates incorrect OccluderVertices for software occlusion

UE - LD & Modeling - Terrain - Landscape - Sep 17, 2019

OccluderVertices didn't consider the subsection's transition, so the position of the OcclusderVertices are not correct. I made a fix as follows: [Image Removed] [Image Removed] ...

Text cannot be displayed when switching languages if a text is constructed using LocalizationTable at runtime.

UE - Editor - UI Systems - Localization - Dec 5, 2022

Using LocalizationTable in text localization does not switch text correctly. This is not a problem in UE4.27, but it is a problem in UE5.0 and later.  ...