Material Parameter Collections must be reassigned to access new parameters

UE - Gameplay - Blueprint - Mar 23, 2015

To access newly created parameters in a Material Parameter Collection via the Set Scalar Parameter Value or Set Vector Parameter Value nodes, you must reassign the Collection to the node. Also Repr ...

Random number generator has a higher probability of returning 0 than any other number

UE - Foundation - Core - Mar 22, 2015

I had a game that needed to generate hundreds of thousands of random numbers. (I was using the Blueprint "Random Float" node). There were a ton of 0.0 values generated, many more than any other n ...

Node pins should always align (to facilitate straight wire connections)

UE - Gameplay - Blueprint - Mar 20, 2015

Different node types are sized differently (nodes like: var getters/setters, function nodes, compact nodes, etc.). Pins should always be set at specific alignment intervals (from the node's top lef ...

Particle Position Node in Material Editor returning incorrect results on Mac

UE - Graphics Features - Mar 20, 2015

Also Reproduced on Main, Promotable-CL-2484152 Particle Position WS Node is returning incorrect results with the following Material Setup on a Mac: [Image Removed] ...

FComponentReference::GetComponent() will cast to UPrimitiveComponent when it should be able to work with any scene component

UE - Gameplay - Mar 20, 2015

The FComponentReference::GetComponent() method can attempt to cast to UPrimitiveComponent when FComponentReference appears to be able to work with any scene component. ...

UMG animations do not play on 3D widgets when using events that fire off after event construct

UE - Editor - UI Systems - Mar 20, 2015

If the event that is used to start the animation was not done so during the construction of the widget, the 3D widget will not animate. An example: Using a button to activate an animation will not w ...

HideCategories() property is not held when the editor is closed

UE - Gameplay - Blueprint - Mar 20, 2015

Setting a UCLASS() macro with the "HideCategories" property will updated after a hot reload but after closing /reopening the editor the hidden category will be visible again. ...

Changing between multiple Streams that are contained within an array does not work

UE - Gameplay - Blueprint - Mar 20, 2015

Changing between multiple Streams that are contained within an array does not work. ...

Outside of AnimBP's, Animation Sequences with negative Rate Scales do not animate

OLD - Anim - Mar 20, 2015

Animation Sequences with negative Rate Scales do not play outside of using them in Animation Blueprints...unless they are looping. UPDATE: A negative rate scale value also breaks Anim Montages. ht ...

Calling a function that returns TWeakObjectPtr in blueprints causes crash

UE - Gameplay - Blueprint - Mar 20, 2015

Calling a code defined function in blueprints that returns a TWeakObjectPtr causes a crash. ...