Unreal Engine Issues

Migrating to a Game Feature plugin can result in assets' losing references

Migrating to a Game Feature plugin can result in assets' losing references. From User: "Migrating assets to a game feature plugin's content directory leaves them having invalid references, editor t ...

Ray Traced Translucency causes artifacts when rotating a Static Mesh that is far away from center of the map

Tested in //UE4/Release-4.27 CL#18319896 Ray Traced Translucency causes artifacts when rotating a Static Mesh in the 'Open World' level when moved far away from the center of the map. The Artifacts ...

Crash on loading level with Landscape by 2 PIE instances

[AI] Crash while loading navmesh with async static mesh compilation enabled

I tried 10+ times but am unable to get this to reproduce locally. Licensee reports that this is a rare crash for them. ...

bIgnoreAllPressedKeysUntilRelease only applies to keys in the previous mapping

This is because the RebuildControlMappings function only checks this flag when you have a mapping that was already added, we should apply this for any new mappings as well.  I'll update the repro s ...

Sprite does not have a UV1 G channel.

The R channel of UV1 is not a problem. ...

TSlateMaterialShaderPSDefault cast error when opening Platform Stats in Lyra's M_UI_Base_BordersAndButtons Material

Licensee has provided a potential fix, please see the UDN link. Callstack attached utilised -onethread ...

HandheldAR ARKit camera overlay is not working in an iOS distribution shipping build

HandheldAR ARKit camera overlay is not working in an iOS distribution shipping build.  Unclear if it's the shipping build or the for distribution checkbox that is the issue (for distribution forces ...

Ensure occurs if the decal scale is set to a very small value

The variable emitting this ensure (RelativeWorldToDecalMatrix) is not actually used, so this line can be removed. FDeferredDecalPS::SetParameters ... const FLargeWorldRenderPosition AbsoluteOri ...

AI Perception UnregisterSource Sense == nullptr does not affect pending adds

UAIPerceptionSystem::UnregisterSource according to its documentation should treat Sense == null as targeting all sources, but the code for removing pending sources does not treat Sense == null as th ...