Unreal Engine Issues

Chaos Cloth - Fictitious Angular Scale is acting up when the cloth is teleported

The Fictitious Angular Scale is still having an effect when the cloth is teleported.  Also it shouldn't have any effects when the velocity scale is set to 1 (as per tooltip documentation) but it doe ...

Components added to an Actor Blueprint may not be propagated to Actors inside World-Partition Level Instances

When a world partition level (but streaming disabled) is placed as a LevelInstance in another world partition level, actors in the inner level are cooked with an outdated component hierarchy until t ...

Preferred Angles Don't Work on Manny Thigh

Color shifting occurs from screen probe gather ping-pong when Lumen active

A subtle yellow tint color shift occurs when Lumen is active due to usage of R11G11B10_Float targets, mostly from r.Lumen.ScreenProbeGather.SpatialFilterProbes where we ping-pong between R11G11B10_F ...

[AI] Crash in UGameplayDebuggerLocalController::OnDebugDraw

UGameplayDebuggerLocalController::OnDebugDraw crashed with a dereferenced nullptr for CachedReplicator. ...

OnlyTickMontagesAndRefreshBonesWhenPlayingMontages visibility option updates anim instance multiple times

The OnlyTickMontagesAndRefreshBonesWhenPlayingMontages setting added in 5.4 is broken.  It only works because it unintentionally forces a second call to UAnimInstance::UpdateAnimation (via RefreshBo ...

PhysicsControl-enabled controls occasionally teleport to origin

Occasionally, PhysicsControl controls will teleport to the world origin. This is sporadic and generally fixes itself either with a restart. In the licensee's case, the controls were also animation d ...

Using "Change Class" on Spawnables, Possessable references retain old Class info

Changing Class for Spawnable objects in Level Sequence did not have any impact on Possesable objects in Subsequence. It's still referencing the previous Class. Also found in Release-5.4, CL: 329753 ...

Unable to Create New Niagara User Parameter After Deletion without Niagara Editor Window Restart

When a user deletes a Niagara User Parameter within the Niagara System editor window, attempting to create a new parameter with the same name immediately after deletion results in an error. Despite ...

Blueprint Add Custom Event unable to resolve delegate signature inside a split struct

This issue occurs when a static function is created and has a struct parameter that has a delegate exposed to blueprint. When using the helper function in blueprint after having used "Split Struct ...