Unreal Engine Issues

[AI] Navigation memory set in NavMeshMemory::ForAnyElementType::ResizeAllocation shows as Untagged in LLM instead of being under Navigation.

Licensee found that memory being allocated during a resize in NavMeshMemory is not being tagged within LLM as NavigationMemory but show in LLM as Untagged memory. They do not have a callstack showca ...

Crash after generating HLODs for merged meshes that have all triangles culled

Substrate SSR reflections are black

Substrate Materials do not use Screen-Space reflections. Instead, they do not have any reflections (indirect specular) on the surface. ...

Crash when trying to change game mode settings

Trying to change game mode settings after restarting the editor will cause the editor to crash. ...

Setting character animation in parent BP and mesh in child BP does not play the animation in a packaged game

When a child BP is used to with a skeletal mesh to play an animation set in the parent, the animation will play in editor and in standalone but will not play in a packaged game. ...

LIVE: Attach Actor to Component crashes the editor when used after Set Simulate Physics

The user has attached a small project at the link to demonstrate the issue. Occurs in 4.5.1 and well as Main (//depot/UE4/Promotable-CL-2239587). Crash Reporter: [Link Removed] ...

Load level interactions are not working on mobile

When using UMG to load levels on a mobile device, The first level is being loaded but nothing after the first is able to trigger any additional levels to load. ...

Character Movement values do not reset to defaults

Character Movement values do not reset to defaults. Changing a value and then using the arrow to Reset to Default updates the number displayed in the Details panel, but the value does not update dur ...

The World Outliner will only show one Child Actor on a Blueprint that has multiple Child Actors in its Components tab

The World Outliner will only show one Child Actor on a Blueprint that has multiple Child Actors in its Components tab. Note that all Child Actor Components added via the Construction Script will dis ...

Setting NavModifierVolume's AreaClass at runtime does not result in navmesh rebuilding

The volume does accept the change and if it gets moved the navmesh will rebuild with new area set. The core issue is that setting NavModifierVolume.AreaClass at runtime does not notify navigation sy ...