Unreal Engine Issues
Unreal Engine Issues
Crash when launching Google VR project
UE - Platform - XR - Dec 12, 2016Attempting to launch a packaged Google VR game on android causes the game to crash. This has occurred on two other devices. This occurs in Main as well as Dev-VR. ...
Object Scale Not Working with Instanced Static Mesh
UE - Graphics Features - May 19, 2016Using Object Scale in your material with an Instanced Static Mesh does not change the color of the material if you scale the individual instances of the Instanced Static Mesh component. If you scal ...
Unexpected Collision Response When Nesting Primitive Components with auto-weld enabled and physics disabled on children. The root primitive falls through floor even though it is set to block all.
UE - Simulation - Physics - May 27, 2025Context Auto-weld makes it so if a child is attached to a parent, the two bodies will be joined into a single rigid body. Physic settings like collision profile and body settings are determined by t ...
Changing the scale of a single HISM instance greatly affects the LOD selection of all instances
UE - Rendering Architecture - Sep 22, 2025When using ISMs and HISMs, each instance can have its own transform, which can affect the LOD selection of one or more instances. For HISMs in particular, changing the scale of a single instance gre ...
Upgrading to from 4.6 to 4.7 can cause assets to not be fully loaded in
UE - Gameplay - Blueprint - Mar 8, 2015A user has upgraded their project from 4.6.1 to 4.7.2 and now one of their assets is partially loaded. After a bit of digging I found an error in the event graph of the ShadowHerosHUD. The nodes are ...
Setting size of GameViewportClient gives different results on Android than in Editor
UE - Platform - Mobile - Feb 9, 2017Setting size of GameViewportClient gives different results on Android than in Editor OpenGL ES renders with the viewport origin in the bottom left, so that's potentially related to the problem. A ...
Construction script not updating HISM array count
UE - Gameplay - Blueprint - Mar 27, 2017Construction script not updating HISM array count, even when new elements are adding inside of the level. Regression: Issue occurs in 4.15.1 of the binary build Using the same repro steps provid ...
Incorrect values from NAND node with 3 inputs
UE - Gameplay - Blueprint - May 2, 2017The values printed from the nand boolean node display incorrect values for the specific set-ups with 3 inputs that are in the repro steps. The node works as intended with 2 inputs, and with some of ...
World Outliner selection does not update transform widget location during play
Tools - May 23, 2017World Outliner selection does not update transform widget location during play. This issue can be easily fixed simply by reselecting the object, this issue only affects the first time the object is ...
[CrashReport] Mac crash - UE4Editor-SlateCore.dylib!SWindow::IsVisible()
UE - Platform - Apple - Oct 12, 2017This is a trending Mac crash coming out of the 4.18 previews. Most of the project titles experiencing this crash mention "AR" It is the exact same callstack and crashgroup as [Link Removed], but th ...