Unreal Engine Issues

GPU Particle Collision causes shaking when set to bounce with low resilience.

A particle emitter with GPU sprites on certain settings will shake violently as they collide with the ground. This requires there to be a strong Const Acceleration module and Collision with low resi ...

Destructible attached with a Physics Constraint have inconsistent physics

Destructible attached with a Physics Constraint have inconsistent physics compared to a standard Static Mesh. This is also sometimes prevalent with Destructibles that aren't attached with a Physics ...

Destructible attached with a Physics Constraint ignores Start Awake on play

Destructible attached with a Physics Constraint ignores Start Awake on play The Destructible component is set to simulate physics, but on play physics is not simulated unless the destructible is to ...

Buffer Visualizer displays Roughness and Base Color incorrectly.

When a material with the exact same values are input into the Base color, Specular, Metallic, and Roughness they display differently in the Buffer Visualizer Overview. ...

[UMG] Restarting a stopped animation and changing the visibility of a widget on the same frame causes the animation to not play

Playing a previously played (and stopped) UMG animation doesn't work properly if the visibility of that widget was changed in the same frame as the PlayAnimation node. If PauseAnimation is used inst ...

HTTP GET requests are much slower than a Python script by a factor of 15-20x

Based on user report, a HTTP Get request from UE4 is 15-20x slower than if using a Python Get request to get the same file. ...

Reroute nodes in blueprints cause visual issues for events when using create event.

When adding a reroute node between a "create event" node and any "Bind Event to...." node, the combo box list in "Create Event" node will disappear. Workaround: If the "create event" node is first ...

Selected Foliage does not have a transform gizmo in VR Mode

Using TInlineAllocator with a large number in TArray that is in an AActor class will cause child Blueprint class to call an assert while parent class will not

If a TArray has a TInlineAllocator with a large number and the class is used with a child Blueprint, the editor will throw an assert. If the base C++ Class is used instead of the Blueprint, the asse ...

Construction Script using GetSizeX/Y from Texture 2D reference returns Divide By Zero Warning when Packaging

A user has found and reported a divide by zero warning within the Construction Script when packaging for Windows. This does not occur while in the editor as when you begin moving around the blueprin ...