Unreal Engine Issues

Combo box does not function in packaged build

The ComboBox (string) element for UMG is not correctly displaying, The array options do not appear and can not be selected, for the packaged build, while PIE behaves as expected. Regression: This ...

Naming a category for a function the same name as a function can cause the My Blueprints tree to display incorrectly (making the category heading look like a function)

Recompiling blueprint breaks Instanced class property inside child actor

When a blueprint class that contains an instanced property is used as the class for a child actor template, recompiling that class results in a disconnect between the instanced subobject in the blue ...

Object using specific Corona Material Import by default with wrong UVs

Translucency area has stripe-style issue on TSR

The TSR History Rejection buffer develops a grid-like artifact over translucent, camera-facingplanes. This problem can be mitigated by increasing r.TSR.ShadingRejection.TileOverscan from 3 to 4 with ...

Modifying FSuggestProjectileVelocityParameters::ResponseParam.CollisionResponse modifies FCollisionResponseParams::DefaultResponseParam

FSuggestProjectileVelocityParameters was introduced in 5.4 and has a FCollisionResponseParams member that's initialized as a mutable reference to FCollisionResponseParams::DefaultResponseParam. str ...

Slate memory stomp on engine shutdown caused by invalidation panel

A licensee reported a crash happening when the engine shuts down. We determined it only occurred when invalidation panels are used, likely caused by a call to ClearChildren on a canvas panel in an i ...

Planes have a Mesh Distance field exceeds the size of the original mesh

Planes have a Mesh Distance field exceeds the size of the original mesh when the value is set to 2. This behavior does not seem intended as the cube does not experience this issue when the value is ...

Root Motion Not Retained when Retargeting Animation Assets from UE4 to UE5

Occurs 5/5 Times RootMotion of an animation asset is not retained when retargeting Root Motion Animation asset from UE4 to UE5.  ...

MS_VertexAnimationTools_MorphTargets are not deforming and reforming

The Material should be contracting and expanding if it is working correctly, but after version 4.16 it is not. Instead it is solid in appearance in the material editor viewport. Below I have linked ...