Unreal Engine Issues

Default Data Wire Thickness in the Editor Preferences only affects Single Value data wires. Containers (Array, Set, Map) line thickness are wrongly tied to Default Execution Wire Thickness.

Changing the "Editor Preferences > Content Editors > Graph Editors > Tracing > Default Data Wire Thickness" value in the "Editor Preferences" only affects single value data wires. Containers (Array, ...

"Assertion failed: CellIndex < CellIndexMax" when there are a lot of HISM foliage in a level

Users have come across an issue in 5.4 that causes an assert when many foliage or HISM objects are placed in a level due to a cell size limit. ...

Textures referenced by parent material are still loaded even if material instance overrides them

Currently when we load a Material Instance that overrides some texture parameter of its parent, we also load all the overridden textures of the parent. This is quite wasteful, as those textures wil ...

Level Instances appear at the origin on Linux cooks

Level Instances are spawned in the origin (0,0,0) after making a packaged build in Linux ...

When level instance is in standalone mode, the actor with IsMainWorldOnly enabled is loaded into persistent level.

The IsMainWorldOnly setting for Actor in LevelInstance is not reflected when LevelInstance is in Standalone mode. The setting is respected when LevelInstance is in Embedded mode. The Actor is not l ...

Anim Blueprint preview plays incorrect anim sequence after swapping sequence players

It seems that the debug skeletal mesh in the anim blueprint preview can end up playing the incorrect anim sequences.  This happens when a sequence player, with the anim sequence specified via proper ...

Ensure when using ellipsis overflow method with very small Slate text boxes

The Ellipsis overflow method on text widgets can cause an ensure to trip as a result of a render batch being sent with no indices. We could guard against this in SlateRHIRenderingPolicy by checking ...

When actors are placed in a folder their attachment dependencies are no longer loaded when the root actor loads

Level Sequences can't reference actors that reside in Level Instances different from the ones they are executed from.

Level Sequences can reference many actors, but the references are not solved if the actor is not in the same Level Instance as the one the Level Sequence is being played from, or the root level from ...

Editor numeric input fields don't support double precision numbers.

Even if we support double precision numbers at core, it's impossible to enter a small number in the numeric fields.  It makes sense for floats and avoids bloating the UI, but I remember a discussio ...