Unreal Engine Issues

Const Blueprint Implementable Events don't update if const is removed from the native declaration

Constness is not updated in overridden BlueprintImplementableEvents when the native declaration is made non-const.  ...

Crash and Performance issues when Generating Foliage using the Procedural Foliage Volume

Users are reporting crashes and poor performance when generating foliage using the Experimental Procedural Foliage Volume tool. Regression? Yes, this does not occur in the previous engine version o ...

After closing PIE, Right click dragging is confined to the Viewport bounds

After holding any mouse button down and pressing escape to quit the game, using the right mouse button to move in the viewport locks it to the left and right bounds of the viewport. Sometimes moving ...

[CrashReport] VRFunhouse crash - UParticleLODLevel::PostLoad()

Duplicating a blueprint that implements an interface and then removing that interface will cause compile errors that don't occur if the interface was removed from the original BP

See steps to reproduce. Looks like the fixup when saying Yes to "Would you like to transfer the interface functions to be part of your blueprint" doesn't work correctly on the duplicated BP. Inter ...

Using a Macro to access a variable from another Actor causes a crash in Standalone

Using a Macro to access a variable from another Actor causes a crash in Standalone. This does not seem to affect any other preview in editor, nor packaged games. Reproduced in 4.7.6, 4.8 Preview 4, ...

PhysX generates extra "sleep" event when moving Kinematic actors away from Simulated actors with Teleport option.

Issue seems to be related to NpRigidDynamic::setKinematicTarget. When called by itself (like in the case of Kinematic bodies moved without teleportation), the simulated actor is woken and is put ba ...

Particle record in the Matinee leads to crash when playing after record.

Particle record feature in the matinee seems not properly working in the Editor. When trying to play in the matinee with recorded keys, the Engine will crash with Access violation - code c0000005. ...

Adding to Struct causes 'Inappropriate Outermost' warnings

Adding to Struct causes 'Inappropriate Outermost' warnings to be spammed to the Output Log ...

Increment and decrement nodes return the incorrect value

Increment and decrement nodes return the incorrect value User Description: Getting the result of the Increment Macro seems to be incrementing the variable twice. Very confusing. Is this normal? ...